127967760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1997}}^1$

素因数の和:2105

約数の個数: 120

約数和(自身を含む): 434804760

約数和(自身を除く): 306837000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 89, 90, 120, 144, 178, 180, 240, 267, 356, 360, 445, 534, 712, 720, 801, 890, 1068, 1335, 1424, 1602, 1780, 1997, 2136, 2670, 3204, 3560, 3994, 4005, 4272, 5340, 5991, 6408, 7120, 7988, 8010, 9985, 10680, 11982, 12816, 15976, 16020, 17973, 19970, 21360, 23964, 29955, 31952, 32040, 35946, 39940, 47928, 59910, 64080, 71892, 79880, 89865, 95856, 119820, 143784, 159760, 177733, 179730, 239640, 287568, 355466, 359460, 479280, 533199, 710932, 718920, 888665, 1066398, 1421864, 1437840, 1599597, 1777330, 2132796, 2665995, 2843728, 3199194, 3554660, 4265592, 5331990, 6398388, 7109320, 7997985, 8531184, 10663980, 12796776, 14218640, 15995970, 21327960, 25593552, 31991940, 42655920, 63983880, 127967760]

約数ペア:

[(1, 127967760), (2, 63983880), (3, 42655920), (4, 31991940), (5, 25593552), (6, 21327960), (8, 15995970), (9, 14218640), (10, 12796776), (12, 10663980), (15, 8531184), (16, 7997985), (18, 7109320), (20, 6398388), (24, 5331990), (30, 4265592), (36, 3554660), (40, 3199194), (45, 2843728), (48, 2665995), (60, 2132796), (72, 1777330), (80, 1599597), (89, 1437840), (90, 1421864), (120, 1066398), (144, 888665), (178, 718920), (180, 710932), (240, 533199), (267, 479280), (356, 359460), (360, 355466), (445, 287568), (534, 239640), (712, 179730), (720, 177733), (801, 159760), (890, 143784), (1068, 119820), (1335, 95856), (1424, 89865), (1602, 79880), (1780, 71892), (1997, 64080), (2136, 59910), (2670, 47928), (3204, 39940), (3560, 35946), (3994, 32040), (4005, 31952), (4272, 29955), (5340, 23964), (5991, 21360), (6408, 19970), (7120, 17973), (7988, 16020), (8010, 15976), (9985, 12816), (10680, 11982)]