640148760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3019}}^1$

素因数の和:3086

約数の個数: 192

約数和(自身を含む): 2261376000

約数和(自身を除く): 1621227240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 31, 36, 38, 40, 45, 57, 60, 62, 72, 76, 90, 93, 95, 114, 120, 124, 152, 155, 171, 180, 186, 190, 228, 248, 279, 285, 310, 342, 360, 372, 380, 456, 465, 558, 570, 589, 620, 684, 744, 760, 855, 930, 1116, 1140, 1178, 1240, 1368, 1395, 1710, 1767, 1860, 2232, 2280, 2356, 2790, 2945, 3019, 3420, 3534, 3720, 4712, 5301, 5580, 5890, 6038, 6840, 7068, 8835, 9057, 10602, 11160, 11780, 12076, 14136, 15095, 17670, 18114, 21204, 23560, 24152, 26505, 27171, 30190, 35340, 36228, 42408, 45285, 53010, 54342, 57361, 60380, 70680, 72456, 90570, 93589, 106020, 108684, 114722, 120760, 135855, 172083, 181140, 187178, 212040, 217368, 229444, 271710, 280767, 286805, 344166, 362280, 374356, 458888, 467945, 516249, 543420, 561534, 573610, 688332, 748712, 842301, 860415, 935890, 1032498, 1086840, 1123068, 1147220, 1376664, 1403835, 1684602, 1720830, 1778191, 1871780, 2064996, 2246136, 2294440, 2581245, 2807670, 3369204, 3441660, 3556382, 3743560, 4129992, 4211505, 5162490, 5334573, 5615340, 6738408, 6883320, 7112764, 8423010, 8890955, 10324980, 10669146, 11230680, 14225528, 16003719, 16846020, 17781910, 20649960, 21338292, 26672865, 32007438, 33692040, 35563820, 42676584, 53345730, 64014876, 71127640, 80018595, 106691460, 128029752, 160037190, 213382920, 320074380, 640148760]

約数ペア:

[(1, 640148760), (2, 320074380), (3, 213382920), (4, 160037190), (5, 128029752), (6, 106691460), (8, 80018595), (9, 71127640), (10, 64014876), (12, 53345730), (15, 42676584), (18, 35563820), (19, 33692040), (20, 32007438), (24, 26672865), (30, 21338292), (31, 20649960), (36, 17781910), (38, 16846020), (40, 16003719), (45, 14225528), (57, 11230680), (60, 10669146), (62, 10324980), (72, 8890955), (76, 8423010), (90, 7112764), (93, 6883320), (95, 6738408), (114, 5615340), (120, 5334573), (124, 5162490), (152, 4211505), (155, 4129992), (171, 3743560), (180, 3556382), (186, 3441660), (190, 3369204), (228, 2807670), (248, 2581245), (279, 2294440), (285, 2246136), (310, 2064996), (342, 1871780), (360, 1778191), (372, 1720830), (380, 1684602), (456, 1403835), (465, 1376664), (558, 1147220), (570, 1123068), (589, 1086840), (620, 1032498), (684, 935890), (744, 860415), (760, 842301), (855, 748712), (930, 688332), (1116, 573610), (1140, 561534), (1178, 543420), (1240, 516249), (1368, 467945), (1395, 458888), (1710, 374356), (1767, 362280), (1860, 344166), (2232, 286805), (2280, 280767), (2356, 271710), (2790, 229444), (2945, 217368), (3019, 212040), (3420, 187178), (3534, 181140), (3720, 172083), (4712, 135855), (5301, 120760), (5580, 114722), (5890, 108684), (6038, 106020), (6840, 93589), (7068, 90570), (8835, 72456), (9057, 70680), (10602, 60380), (11160, 57361), (11780, 54342), (12076, 53010), (14136, 45285), (15095, 42408), (17670, 36228), (18114, 35340), (21204, 30190), (23560, 27171), (24152, 26505)]