1820421960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{9547}}^1$

素因数の和:9795

約数の個数: 128

約数和(自身を含む): 6269598720

約数和(自身を除く): 4449176760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 227, 280, 420, 454, 681, 840, 908, 1135, 1362, 1589, 1816, 2270, 2724, 3178, 3405, 4540, 4767, 5448, 6356, 6810, 7945, 9080, 9534, 9547, 12712, 13620, 15890, 19068, 19094, 23835, 27240, 28641, 31780, 38136, 38188, 47670, 47735, 57282, 63560, 66829, 76376, 95340, 95470, 114564, 133658, 143205, 190680, 190940, 200487, 229128, 267316, 286410, 334145, 381880, 400974, 534632, 572820, 668290, 801948, 1002435, 1145640, 1336580, 1603896, 2004870, 2167169, 2673160, 4009740, 4334338, 6501507, 8019480, 8668676, 10835845, 13003014, 15170183, 17337352, 21671690, 26006028, 30340366, 32507535, 43343380, 45510549, 52012056, 60680732, 65015070, 75850915, 86686760, 91021098, 121361464, 130030140, 151701830, 182042196, 227552745, 260060280, 303403660, 364084392, 455105490, 606807320, 910210980, 1820421960]

約数ペア:

[(1, 1820421960), (2, 910210980), (3, 606807320), (4, 455105490), (5, 364084392), (6, 303403660), (7, 260060280), (8, 227552745), (10, 182042196), (12, 151701830), (14, 130030140), (15, 121361464), (20, 91021098), (21, 86686760), (24, 75850915), (28, 65015070), (30, 60680732), (35, 52012056), (40, 45510549), (42, 43343380), (56, 32507535), (60, 30340366), (70, 26006028), (84, 21671690), (105, 17337352), (120, 15170183), (140, 13003014), (168, 10835845), (210, 8668676), (227, 8019480), (280, 6501507), (420, 4334338), (454, 4009740), (681, 2673160), (840, 2167169), (908, 2004870), (1135, 1603896), (1362, 1336580), (1589, 1145640), (1816, 1002435), (2270, 801948), (2724, 668290), (3178, 572820), (3405, 534632), (4540, 400974), (4767, 381880), (5448, 334145), (6356, 286410), (6810, 267316), (7945, 229128), (9080, 200487), (9534, 190940), (9547, 190680), (12712, 143205), (13620, 133658), (15890, 114564), (19068, 95470), (19094, 95340), (23835, 76376), (27240, 66829), (28641, 63560), (31780, 57282), (38136, 47735), (38188, 47670)]