81770000

素因数分解:

$2^4\times 5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:95

約数の個数: 200

約数和(自身を含む): 231844536

約数和(自身を除く): 150074536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 34, 37, 40, 50, 52, 65, 68, 74, 80, 85, 100, 104, 125, 130, 136, 148, 170, 185, 200, 208, 221, 250, 260, 272, 296, 325, 340, 370, 400, 425, 442, 481, 500, 520, 592, 625, 629, 650, 680, 740, 850, 884, 925, 962, 1000, 1040, 1105, 1250, 1258, 1300, 1360, 1480, 1625, 1700, 1768, 1850, 1924, 2000, 2125, 2210, 2405, 2500, 2516, 2600, 2960, 3145, 3250, 3400, 3536, 3700, 3848, 4250, 4420, 4625, 4810, 5000, 5032, 5200, 5525, 6290, 6500, 6800, 7400, 7696, 8125, 8177, 8500, 8840, 9250, 9620, 10000, 10064, 10625, 11050, 12025, 12580, 13000, 14800, 15725, 16250, 16354, 17000, 17680, 18500, 19240, 21250, 22100, 23125, 24050, 25160, 26000, 27625, 31450, 32500, 32708, 34000, 37000, 38480, 40885, 42500, 44200, 46250, 48100, 50320, 55250, 60125, 62900, 65000, 65416, 74000, 78625, 81770, 85000, 88400, 92500, 96200, 110500, 120250, 125800, 130000, 130832, 138125, 157250, 163540, 170000, 185000, 192400, 204425, 221000, 240500, 251600, 276250, 300625, 314500, 327080, 370000, 393125, 408850, 442000, 481000, 552500, 601250, 629000, 654160, 786250, 817700, 962000, 1022125, 1105000, 1202500, 1258000, 1572500, 1635400, 2044250, 2210000, 2405000, 3145000, 3270800, 4088500, 4810000, 5110625, 6290000, 8177000, 10221250, 16354000, 20442500, 40885000, 81770000]

約数ペア:

[(1, 81770000), (2, 40885000), (4, 20442500), (5, 16354000), (8, 10221250), (10, 8177000), (13, 6290000), (16, 5110625), (17, 4810000), (20, 4088500), (25, 3270800), (26, 3145000), (34, 2405000), (37, 2210000), (40, 2044250), (50, 1635400), (52, 1572500), (65, 1258000), (68, 1202500), (74, 1105000), (80, 1022125), (85, 962000), (100, 817700), (104, 786250), (125, 654160), (130, 629000), (136, 601250), (148, 552500), (170, 481000), (185, 442000), (200, 408850), (208, 393125), (221, 370000), (250, 327080), (260, 314500), (272, 300625), (296, 276250), (325, 251600), (340, 240500), (370, 221000), (400, 204425), (425, 192400), (442, 185000), (481, 170000), (500, 163540), (520, 157250), (592, 138125), (625, 130832), (629, 130000), (650, 125800), (680, 120250), (740, 110500), (850, 96200), (884, 92500), (925, 88400), (962, 85000), (1000, 81770), (1040, 78625), (1105, 74000), (1250, 65416), (1258, 65000), (1300, 62900), (1360, 60125), (1480, 55250), (1625, 50320), (1700, 48100), (1768, 46250), (1850, 44200), (1924, 42500), (2000, 40885), (2125, 38480), (2210, 37000), (2405, 34000), (2500, 32708), (2516, 32500), (2600, 31450), (2960, 27625), (3145, 26000), (3250, 25160), (3400, 24050), (3536, 23125), (3700, 22100), (3848, 21250), (4250, 19240), (4420, 18500), (4625, 17680), (4810, 17000), (5000, 16354), (5032, 16250), (5200, 15725), (5525, 14800), (6290, 13000), (6500, 12580), (6800, 12025), (7400, 11050), (7696, 10625), (8125, 10064), (8177, 10000), (8500, 9620), (8840, 9250)]