440745280

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1128

約数の個数: 112

約数和(自身を含む): 1121420160

約数和(自身を除く): 680674880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 71, 76, 80, 95, 142, 152, 160, 190, 284, 304, 320, 355, 380, 568, 608, 710, 760, 1021, 1136, 1216, 1349, 1420, 1520, 2042, 2272, 2698, 2840, 3040, 4084, 4544, 5105, 5396, 5680, 6080, 6745, 8168, 10210, 10792, 11360, 13490, 16336, 19399, 20420, 21584, 22720, 26980, 32672, 38798, 40840, 43168, 53960, 65344, 72491, 77596, 81680, 86336, 96995, 107920, 144982, 155192, 163360, 193990, 215840, 289964, 310384, 326720, 362455, 387980, 431680, 579928, 620768, 724910, 775960, 1159856, 1241536, 1377329, 1449820, 1551920, 2319712, 2754658, 2899640, 3103840, 4639424, 5509316, 5799280, 6207680, 6886645, 11018632, 11598560, 13773290, 22037264, 23197120, 27546580, 44074528, 55093160, 88149056, 110186320, 220372640, 440745280]

約数ペア:

[(1, 440745280), (2, 220372640), (4, 110186320), (5, 88149056), (8, 55093160), (10, 44074528), (16, 27546580), (19, 23197120), (20, 22037264), (32, 13773290), (38, 11598560), (40, 11018632), (64, 6886645), (71, 6207680), (76, 5799280), (80, 5509316), (95, 4639424), (142, 3103840), (152, 2899640), (160, 2754658), (190, 2319712), (284, 1551920), (304, 1449820), (320, 1377329), (355, 1241536), (380, 1159856), (568, 775960), (608, 724910), (710, 620768), (760, 579928), (1021, 431680), (1136, 387980), (1216, 362455), (1349, 326720), (1420, 310384), (1520, 289964), (2042, 215840), (2272, 193990), (2698, 163360), (2840, 155192), (3040, 144982), (4084, 107920), (4544, 96995), (5105, 86336), (5396, 81680), (5680, 77596), (6080, 72491), (6745, 65344), (8168, 53960), (10210, 43168), (10792, 40840), (11360, 38798), (13490, 32672), (16336, 26980), (19399, 22720), (20420, 21584)]