40911520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:147

約数の個数: 144

約数和(自身を含む): 112061880

約数和(自身を除く): 71150360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 65, 68, 80, 85, 89, 104, 130, 136, 160, 169, 170, 178, 208, 221, 260, 272, 338, 340, 356, 416, 442, 445, 520, 544, 676, 680, 712, 845, 884, 890, 1040, 1105, 1157, 1352, 1360, 1424, 1513, 1690, 1768, 1780, 2080, 2210, 2314, 2704, 2720, 2848, 2873, 3026, 3380, 3536, 3560, 4420, 4628, 5408, 5746, 5785, 6052, 6760, 7072, 7120, 7565, 8840, 9256, 11492, 11570, 12104, 13520, 14240, 14365, 15041, 15130, 17680, 18512, 19669, 22984, 23140, 24208, 27040, 28730, 30082, 30260, 35360, 37024, 39338, 45968, 46280, 48416, 57460, 60164, 60520, 75205, 78676, 91936, 92560, 98345, 114920, 120328, 121040, 150410, 157352, 185120, 196690, 229840, 240656, 242080, 255697, 300820, 314704, 393380, 459680, 481312, 511394, 601640, 629408, 786760, 1022788, 1203280, 1278485, 1573520, 2045576, 2406560, 2556970, 3147040, 4091152, 5113940, 8182304, 10227880, 20455760, 40911520]

約数ペア:

[(1, 40911520), (2, 20455760), (4, 10227880), (5, 8182304), (8, 5113940), (10, 4091152), (13, 3147040), (16, 2556970), (17, 2406560), (20, 2045576), (26, 1573520), (32, 1278485), (34, 1203280), (40, 1022788), (52, 786760), (65, 629408), (68, 601640), (80, 511394), (85, 481312), (89, 459680), (104, 393380), (130, 314704), (136, 300820), (160, 255697), (169, 242080), (170, 240656), (178, 229840), (208, 196690), (221, 185120), (260, 157352), (272, 150410), (338, 121040), (340, 120328), (356, 114920), (416, 98345), (442, 92560), (445, 91936), (520, 78676), (544, 75205), (676, 60520), (680, 60164), (712, 57460), (845, 48416), (884, 46280), (890, 45968), (1040, 39338), (1105, 37024), (1157, 35360), (1352, 30260), (1360, 30082), (1424, 28730), (1513, 27040), (1690, 24208), (1768, 23140), (1780, 22984), (2080, 19669), (2210, 18512), (2314, 17680), (2704, 15130), (2720, 15041), (2848, 14365), (2873, 14240), (3026, 13520), (3380, 12104), (3536, 11570), (3560, 11492), (4420, 9256), (4628, 8840), (5408, 7565), (5746, 7120), (5785, 7072), (6052, 6760)]