440677120

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:478

約数の個数: 144

約数和(自身を含む): 1155857472

約数和(自身を除く): 715180352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 71, 80, 104, 128, 130, 142, 160, 208, 256, 260, 284, 320, 355, 373, 416, 520, 568, 640, 710, 746, 832, 923, 1040, 1136, 1280, 1420, 1492, 1664, 1846, 1865, 2080, 2272, 2840, 2984, 3328, 3692, 3730, 4160, 4544, 4615, 4849, 5680, 5968, 7384, 7460, 8320, 9088, 9230, 9698, 11360, 11936, 14768, 14920, 16640, 18176, 18460, 19396, 22720, 23872, 24245, 26483, 29536, 29840, 36920, 38792, 45440, 47744, 48490, 52966, 59072, 59680, 73840, 77584, 90880, 95488, 96980, 105932, 118144, 119360, 132415, 147680, 155168, 193960, 211864, 236288, 238720, 264830, 295360, 310336, 344279, 387920, 423728, 477440, 529660, 590720, 620672, 688558, 775840, 847456, 1059320, 1181440, 1241344, 1377116, 1551680, 1694912, 1721395, 2118640, 2754232, 3103360, 3389824, 3442790, 4237280, 5508464, 6206720, 6779648, 6885580, 8474560, 11016928, 13771160, 16949120, 22033856, 27542320, 33898240, 44067712, 55084640, 88135424, 110169280, 220338560, 440677120]

約数ペア:

[(1, 440677120), (2, 220338560), (4, 110169280), (5, 88135424), (8, 55084640), (10, 44067712), (13, 33898240), (16, 27542320), (20, 22033856), (26, 16949120), (32, 13771160), (40, 11016928), (52, 8474560), (64, 6885580), (65, 6779648), (71, 6206720), (80, 5508464), (104, 4237280), (128, 3442790), (130, 3389824), (142, 3103360), (160, 2754232), (208, 2118640), (256, 1721395), (260, 1694912), (284, 1551680), (320, 1377116), (355, 1241344), (373, 1181440), (416, 1059320), (520, 847456), (568, 775840), (640, 688558), (710, 620672), (746, 590720), (832, 529660), (923, 477440), (1040, 423728), (1136, 387920), (1280, 344279), (1420, 310336), (1492, 295360), (1664, 264830), (1846, 238720), (1865, 236288), (2080, 211864), (2272, 193960), (2840, 155168), (2984, 147680), (3328, 132415), (3692, 119360), (3730, 118144), (4160, 105932), (4544, 96980), (4615, 95488), (4849, 90880), (5680, 77584), (5968, 73840), (7384, 59680), (7460, 59072), (8320, 52966), (9088, 48490), (9230, 47744), (9698, 45440), (11360, 38792), (11936, 36920), (14768, 29840), (14920, 29536), (16640, 26483), (18176, 24245), (18460, 23872), (19396, 22720)]