19571850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 144

約数和(自身を含む): 57567744

約数和(自身を除く): 37995894

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 25, 30, 31, 45, 46, 50, 61, 62, 69, 75, 90, 93, 115, 122, 138, 150, 155, 183, 186, 207, 225, 230, 279, 305, 310, 345, 366, 414, 450, 465, 549, 558, 575, 610, 690, 713, 775, 915, 930, 1035, 1098, 1150, 1395, 1403, 1426, 1525, 1550, 1725, 1830, 1891, 2070, 2139, 2325, 2745, 2790, 2806, 3050, 3450, 3565, 3782, 4209, 4278, 4575, 4650, 5175, 5490, 5673, 6417, 6975, 7015, 7130, 8418, 9150, 9455, 10350, 10695, 11346, 12627, 12834, 13725, 13950, 14030, 17019, 17825, 18910, 21045, 21390, 25254, 27450, 28365, 32085, 34038, 35075, 35650, 42090, 43493, 47275, 53475, 56730, 63135, 64170, 70150, 85095, 86986, 94550, 105225, 106950, 126270, 130479, 141825, 160425, 170190, 210450, 217465, 260958, 283650, 315675, 320850, 391437, 425475, 434930, 631350, 652395, 782874, 850950, 1087325, 1304790, 1957185, 2174650, 3261975, 3914370, 6523950, 9785925, 19571850]

約数ペア:

[(1, 19571850), (2, 9785925), (3, 6523950), (5, 3914370), (6, 3261975), (9, 2174650), (10, 1957185), (15, 1304790), (18, 1087325), (23, 850950), (25, 782874), (30, 652395), (31, 631350), (45, 434930), (46, 425475), (50, 391437), (61, 320850), (62, 315675), (69, 283650), (75, 260958), (90, 217465), (93, 210450), (115, 170190), (122, 160425), (138, 141825), (150, 130479), (155, 126270), (183, 106950), (186, 105225), (207, 94550), (225, 86986), (230, 85095), (279, 70150), (305, 64170), (310, 63135), (345, 56730), (366, 53475), (414, 47275), (450, 43493), (465, 42090), (549, 35650), (558, 35075), (575, 34038), (610, 32085), (690, 28365), (713, 27450), (775, 25254), (915, 21390), (930, 21045), (1035, 18910), (1098, 17825), (1150, 17019), (1395, 14030), (1403, 13950), (1426, 13725), (1525, 12834), (1550, 12627), (1725, 11346), (1830, 10695), (1891, 10350), (2070, 9455), (2139, 9150), (2325, 8418), (2745, 7130), (2790, 7015), (2806, 6975), (3050, 6417), (3450, 5673), (3565, 5490), (3782, 5175), (4209, 4650), (4278, 4575)]