18996390

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:88

約数の個数: 192

約数和(自身を含む): 63705600

約数和(自身を除く): 44709210

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 23, 27, 30, 35, 38, 42, 45, 46, 54, 57, 63, 69, 70, 90, 95, 105, 114, 115, 126, 133, 135, 138, 161, 171, 189, 190, 207, 210, 230, 266, 270, 285, 315, 322, 342, 345, 378, 399, 414, 437, 483, 513, 529, 570, 621, 630, 665, 690, 798, 805, 855, 874, 945, 966, 1026, 1035, 1058, 1197, 1242, 1311, 1330, 1449, 1587, 1610, 1710, 1890, 1995, 2070, 2185, 2394, 2415, 2565, 2622, 2645, 2898, 3059, 3105, 3174, 3591, 3703, 3933, 3990, 4347, 4370, 4761, 4830, 5130, 5290, 5985, 6118, 6210, 6555, 7182, 7245, 7406, 7866, 7935, 8694, 9177, 9522, 10051, 11109, 11799, 11970, 13110, 14283, 14490, 15295, 15870, 17955, 18354, 18515, 19665, 20102, 21735, 22218, 23598, 23805, 27531, 28566, 30153, 30590, 33327, 35910, 37030, 39330, 43470, 45885, 47610, 50255, 55062, 55545, 58995, 60306, 66654, 70357, 71415, 82593, 90459, 91770, 99981, 100510, 111090, 117990, 137655, 140714, 142830, 150765, 165186, 166635, 180918, 199962, 211071, 271377, 275310, 301530, 333270, 351785, 412965, 422142, 452295, 499905, 542754, 633213, 703570, 825930, 904590, 999810, 1055355, 1266426, 1356885, 1899639, 2110710, 2713770, 3166065, 3799278, 6332130, 9498195, 18996390]

約数ペア:

[(1, 18996390), (2, 9498195), (3, 6332130), (5, 3799278), (6, 3166065), (7, 2713770), (9, 2110710), (10, 1899639), (14, 1356885), (15, 1266426), (18, 1055355), (19, 999810), (21, 904590), (23, 825930), (27, 703570), (30, 633213), (35, 542754), (38, 499905), (42, 452295), (45, 422142), (46, 412965), (54, 351785), (57, 333270), (63, 301530), (69, 275310), (70, 271377), (90, 211071), (95, 199962), (105, 180918), (114, 166635), (115, 165186), (126, 150765), (133, 142830), (135, 140714), (138, 137655), (161, 117990), (171, 111090), (189, 100510), (190, 99981), (207, 91770), (210, 90459), (230, 82593), (266, 71415), (270, 70357), (285, 66654), (315, 60306), (322, 58995), (342, 55545), (345, 55062), (378, 50255), (399, 47610), (414, 45885), (437, 43470), (483, 39330), (513, 37030), (529, 35910), (570, 33327), (621, 30590), (630, 30153), (665, 28566), (690, 27531), (798, 23805), (805, 23598), (855, 22218), (874, 21735), (945, 20102), (966, 19665), (1026, 18515), (1035, 18354), (1058, 17955), (1197, 15870), (1242, 15295), (1311, 14490), (1330, 14283), (1449, 13110), (1587, 11970), (1610, 11799), (1710, 11109), (1890, 10051), (1995, 9522), (2070, 9177), (2185, 8694), (2394, 7935), (2415, 7866), (2565, 7406), (2622, 7245), (2645, 7182), (2898, 6555), (3059, 6210), (3105, 6118), (3174, 5985), (3591, 5290), (3703, 5130), (3933, 4830), (3990, 4761), (4347, 4370)]