28425760

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:578

約数の個数: 96

約数和(自身を含む): 75769344

約数和(自身を除く): 47343584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 124, 155, 160, 176, 220, 248, 310, 341, 352, 440, 496, 521, 620, 682, 880, 992, 1042, 1240, 1364, 1705, 1760, 2084, 2480, 2605, 2728, 3410, 4168, 4960, 5210, 5456, 5731, 6820, 8336, 10420, 10912, 11462, 13640, 16151, 16672, 20840, 22924, 27280, 28655, 32302, 41680, 45848, 54560, 57310, 64604, 80755, 83360, 91696, 114620, 129208, 161510, 177661, 183392, 229240, 258416, 323020, 355322, 458480, 516832, 646040, 710644, 888305, 916960, 1292080, 1421288, 1776610, 2584160, 2842576, 3553220, 5685152, 7106440, 14212880, 28425760]

約数ペア:

[(1, 28425760), (2, 14212880), (4, 7106440), (5, 5685152), (8, 3553220), (10, 2842576), (11, 2584160), (16, 1776610), (20, 1421288), (22, 1292080), (31, 916960), (32, 888305), (40, 710644), (44, 646040), (55, 516832), (62, 458480), (80, 355322), (88, 323020), (110, 258416), (124, 229240), (155, 183392), (160, 177661), (176, 161510), (220, 129208), (248, 114620), (310, 91696), (341, 83360), (352, 80755), (440, 64604), (496, 57310), (521, 54560), (620, 45848), (682, 41680), (880, 32302), (992, 28655), (1042, 27280), (1240, 22924), (1364, 20840), (1705, 16672), (1760, 16151), (2084, 13640), (2480, 11462), (2605, 10912), (2728, 10420), (3410, 8336), (4168, 6820), (4960, 5731), (5210, 5456)]