311381820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:242

約数の個数: 240

約数和(自身を含む): 1043558208

約数和(自身を除く): 732176388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 61, 69, 81, 90, 92, 108, 115, 122, 135, 137, 138, 162, 180, 183, 207, 230, 244, 270, 274, 276, 305, 324, 345, 366, 405, 411, 414, 460, 540, 548, 549, 610, 621, 685, 690, 732, 810, 822, 828, 915, 1035, 1098, 1220, 1233, 1242, 1370, 1380, 1403, 1620, 1644, 1647, 1830, 1863, 2055, 2070, 2196, 2466, 2484, 2740, 2745, 2806, 3105, 3151, 3294, 3660, 3699, 3726, 4110, 4140, 4209, 4932, 4941, 5490, 5612, 6165, 6210, 6302, 6588, 7015, 7398, 7452, 8220, 8235, 8357, 8418, 9315, 9453, 9882, 10980, 11097, 12330, 12420, 12604, 12627, 14030, 14796, 15755, 16470, 16714, 16836, 18495, 18630, 18906, 19764, 21045, 22194, 24660, 24705, 25071, 25254, 28060, 28359, 31510, 32940, 33428, 36990, 37260, 37812, 37881, 41785, 42090, 44388, 47265, 49410, 50142, 50508, 55485, 56718, 63020, 63135, 73980, 75213, 75762, 83570, 84180, 85077, 94530, 98820, 100284, 110970, 113436, 113643, 125355, 126270, 141795, 150426, 151524, 167140, 170154, 189060, 189405, 192211, 221940, 225639, 227286, 250710, 252540, 255231, 283590, 300852, 340308, 376065, 378810, 384422, 425385, 451278, 454572, 501420, 510462, 567180, 568215, 576633, 676917, 752130, 757620, 768844, 850770, 902556, 961055, 1020924, 1128195, 1136430, 1153266, 1276155, 1353834, 1504260, 1701540, 1729899, 1922110, 2256390, 2272860, 2306532, 2552310, 2707668, 2883165, 3384585, 3459798, 3844220, 4512780, 5104620, 5189697, 5766330, 6769170, 6919596, 8649495, 10379394, 11532660, 13538340, 15569091, 17298990, 20758788, 25948485, 31138182, 34597980, 51896970, 62276364, 77845455, 103793940, 155690910, 311381820]

約数ペア:

[(1, 311381820), (2, 155690910), (3, 103793940), (4, 77845455), (5, 62276364), (6, 51896970), (9, 34597980), (10, 31138182), (12, 25948485), (15, 20758788), (18, 17298990), (20, 15569091), (23, 13538340), (27, 11532660), (30, 10379394), (36, 8649495), (45, 6919596), (46, 6769170), (54, 5766330), (60, 5189697), (61, 5104620), (69, 4512780), (81, 3844220), (90, 3459798), (92, 3384585), (108, 2883165), (115, 2707668), (122, 2552310), (135, 2306532), (137, 2272860), (138, 2256390), (162, 1922110), (180, 1729899), (183, 1701540), (207, 1504260), (230, 1353834), (244, 1276155), (270, 1153266), (274, 1136430), (276, 1128195), (305, 1020924), (324, 961055), (345, 902556), (366, 850770), (405, 768844), (411, 757620), (414, 752130), (460, 676917), (540, 576633), (548, 568215), (549, 567180), (610, 510462), (621, 501420), (685, 454572), (690, 451278), (732, 425385), (810, 384422), (822, 378810), (828, 376065), (915, 340308), (1035, 300852), (1098, 283590), (1220, 255231), (1233, 252540), (1242, 250710), (1370, 227286), (1380, 225639), (1403, 221940), (1620, 192211), (1644, 189405), (1647, 189060), (1830, 170154), (1863, 167140), (2055, 151524), (2070, 150426), (2196, 141795), (2466, 126270), (2484, 125355), (2740, 113643), (2745, 113436), (2806, 110970), (3105, 100284), (3151, 98820), (3294, 94530), (3660, 85077), (3699, 84180), (3726, 83570), (4110, 75762), (4140, 75213), (4209, 73980), (4932, 63135), (4941, 63020), (5490, 56718), (5612, 55485), (6165, 50508), (6210, 50142), (6302, 49410), (6588, 47265), (7015, 44388), (7398, 42090), (7452, 41785), (8220, 37881), (8235, 37812), (8357, 37260), (8418, 36990), (9315, 33428), (9453, 32940), (9882, 31510), (10980, 28359), (11097, 28060), (12330, 25254), (12420, 25071), (12604, 24705), (12627, 24660), (14030, 22194), (14796, 21045), (15755, 19764), (16470, 18906), (16714, 18630), (16836, 18495)]