80665000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:129

約数の個数: 160

約数和(自身を含む): 218461320

約数和(自身を除く): 137796320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 25, 26, 34, 40, 50, 52, 65, 68, 73, 85, 100, 104, 125, 130, 136, 146, 170, 200, 221, 250, 260, 292, 325, 340, 365, 425, 442, 500, 520, 584, 625, 650, 680, 730, 850, 884, 949, 1000, 1105, 1241, 1250, 1300, 1460, 1625, 1700, 1768, 1825, 1898, 2125, 2210, 2482, 2500, 2600, 2920, 3250, 3400, 3650, 3796, 4250, 4420, 4745, 4964, 5000, 5525, 6205, 6500, 7300, 7592, 8125, 8500, 8840, 9125, 9490, 9928, 10625, 11050, 12410, 13000, 14600, 16133, 16250, 17000, 18250, 18980, 21250, 22100, 23725, 24820, 27625, 31025, 32266, 32500, 36500, 37960, 42500, 44200, 45625, 47450, 49640, 55250, 62050, 64532, 65000, 73000, 80665, 85000, 91250, 94900, 110500, 118625, 124100, 129064, 138125, 155125, 161330, 182500, 189800, 221000, 237250, 248200, 276250, 310250, 322660, 365000, 403325, 474500, 552500, 593125, 620500, 645320, 775625, 806650, 949000, 1105000, 1186250, 1241000, 1551250, 1613300, 2016625, 2372500, 3102500, 3226600, 4033250, 4745000, 6205000, 8066500, 10083125, 16133000, 20166250, 40332500, 80665000]

約数ペア:

[(1, 80665000), (2, 40332500), (4, 20166250), (5, 16133000), (8, 10083125), (10, 8066500), (13, 6205000), (17, 4745000), (20, 4033250), (25, 3226600), (26, 3102500), (34, 2372500), (40, 2016625), (50, 1613300), (52, 1551250), (65, 1241000), (68, 1186250), (73, 1105000), (85, 949000), (100, 806650), (104, 775625), (125, 645320), (130, 620500), (136, 593125), (146, 552500), (170, 474500), (200, 403325), (221, 365000), (250, 322660), (260, 310250), (292, 276250), (325, 248200), (340, 237250), (365, 221000), (425, 189800), (442, 182500), (500, 161330), (520, 155125), (584, 138125), (625, 129064), (650, 124100), (680, 118625), (730, 110500), (850, 94900), (884, 91250), (949, 85000), (1000, 80665), (1105, 73000), (1241, 65000), (1250, 64532), (1300, 62050), (1460, 55250), (1625, 49640), (1700, 47450), (1768, 45625), (1825, 44200), (1898, 42500), (2125, 37960), (2210, 36500), (2482, 32500), (2500, 32266), (2600, 31025), (2920, 27625), (3250, 24820), (3400, 23725), (3650, 22100), (3796, 21250), (4250, 18980), (4420, 18250), (4745, 17000), (4964, 16250), (5000, 16133), (5525, 14600), (6205, 13000), (6500, 12410), (7300, 11050), (7592, 10625), (8125, 9928), (8500, 9490), (8840, 9125)]