28209480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{107}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 92534400

約数和(自身を除く): 64324920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 107, 120, 130, 156, 169, 195, 214, 260, 312, 321, 338, 390, 428, 507, 520, 535, 642, 676, 780, 845, 856, 1014, 1070, 1284, 1352, 1391, 1560, 1605, 1690, 2028, 2140, 2197, 2535, 2568, 2782, 3210, 3380, 4056, 4173, 4280, 4394, 5070, 5564, 6420, 6591, 6760, 6955, 8346, 8788, 10140, 10985, 11128, 12840, 13182, 13910, 16692, 17576, 18083, 20280, 20865, 21970, 26364, 27820, 32955, 33384, 36166, 41730, 43940, 52728, 54249, 55640, 65910, 72332, 83460, 87880, 90415, 108498, 131820, 144664, 166920, 180830, 216996, 235079, 263640, 271245, 361660, 433992, 470158, 542490, 705237, 723320, 940316, 1084980, 1175395, 1410474, 1880632, 2169960, 2350790, 2820948, 3526185, 4701580, 5641896, 7052370, 9403160, 14104740, 28209480]

約数ペア:

[(1, 28209480), (2, 14104740), (3, 9403160), (4, 7052370), (5, 5641896), (6, 4701580), (8, 3526185), (10, 2820948), (12, 2350790), (13, 2169960), (15, 1880632), (20, 1410474), (24, 1175395), (26, 1084980), (30, 940316), (39, 723320), (40, 705237), (52, 542490), (60, 470158), (65, 433992), (78, 361660), (104, 271245), (107, 263640), (120, 235079), (130, 216996), (156, 180830), (169, 166920), (195, 144664), (214, 131820), (260, 108498), (312, 90415), (321, 87880), (338, 83460), (390, 72332), (428, 65910), (507, 55640), (520, 54249), (535, 52728), (642, 43940), (676, 41730), (780, 36166), (845, 33384), (856, 32955), (1014, 27820), (1070, 26364), (1284, 21970), (1352, 20865), (1391, 20280), (1560, 18083), (1605, 17576), (1690, 16692), (2028, 13910), (2140, 13182), (2197, 12840), (2535, 11128), (2568, 10985), (2782, 10140), (3210, 8788), (3380, 8346), (4056, 6955), (4173, 6760), (4280, 6591), (4394, 6420), (5070, 5564)]