27986800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:147

約数の個数: 120

約数和(自身を含む): 72451712

約数和(自身を除く): 44464912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 37, 40, 50, 61, 62, 74, 80, 100, 122, 124, 148, 155, 185, 200, 244, 248, 296, 305, 310, 370, 400, 488, 496, 592, 610, 620, 740, 775, 925, 976, 1147, 1220, 1240, 1480, 1525, 1550, 1850, 1891, 2257, 2294, 2440, 2480, 2960, 3050, 3100, 3700, 3782, 4514, 4588, 4880, 5735, 6100, 6200, 7400, 7564, 9028, 9176, 9455, 11285, 11470, 12200, 12400, 14800, 15128, 18056, 18352, 18910, 22570, 22940, 24400, 28675, 30256, 36112, 37820, 45140, 45880, 47275, 56425, 57350, 69967, 75640, 90280, 91760, 94550, 112850, 114700, 139934, 151280, 180560, 189100, 225700, 229400, 279868, 349835, 378200, 451400, 458800, 559736, 699670, 756400, 902800, 1119472, 1399340, 1749175, 2798680, 3498350, 5597360, 6996700, 13993400, 27986800]

約数ペア:

[(1, 27986800), (2, 13993400), (4, 6996700), (5, 5597360), (8, 3498350), (10, 2798680), (16, 1749175), (20, 1399340), (25, 1119472), (31, 902800), (37, 756400), (40, 699670), (50, 559736), (61, 458800), (62, 451400), (74, 378200), (80, 349835), (100, 279868), (122, 229400), (124, 225700), (148, 189100), (155, 180560), (185, 151280), (200, 139934), (244, 114700), (248, 112850), (296, 94550), (305, 91760), (310, 90280), (370, 75640), (400, 69967), (488, 57350), (496, 56425), (592, 47275), (610, 45880), (620, 45140), (740, 37820), (775, 36112), (925, 30256), (976, 28675), (1147, 24400), (1220, 22940), (1240, 22570), (1480, 18910), (1525, 18352), (1550, 18056), (1850, 15128), (1891, 14800), (2257, 12400), (2294, 12200), (2440, 11470), (2480, 11285), (2960, 9455), (3050, 9176), (3100, 9028), (3700, 7564), (3782, 7400), (4514, 6200), (4588, 6100), (4880, 5735)]