28689960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:427

約数の個数: 128

約数和(自身を含む): 94711680

約数和(自身を除く): 66021720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 53, 60, 65, 78, 104, 106, 120, 130, 156, 159, 195, 212, 260, 265, 312, 318, 347, 390, 424, 520, 530, 636, 689, 694, 780, 795, 1041, 1060, 1272, 1378, 1388, 1560, 1590, 1735, 2067, 2082, 2120, 2756, 2776, 3180, 3445, 3470, 4134, 4164, 4511, 5205, 5512, 6360, 6890, 6940, 8268, 8328, 9022, 10335, 10410, 13533, 13780, 13880, 16536, 18044, 18391, 20670, 20820, 22555, 27066, 27560, 36088, 36782, 41340, 41640, 45110, 54132, 55173, 67665, 73564, 82680, 90220, 91955, 108264, 110346, 135330, 147128, 180440, 183910, 220692, 239083, 270660, 275865, 367820, 441384, 478166, 541320, 551730, 717249, 735640, 956332, 1103460, 1195415, 1434498, 1912664, 2206920, 2390830, 2868996, 3586245, 4781660, 5737992, 7172490, 9563320, 14344980, 28689960]

約数ペア:

[(1, 28689960), (2, 14344980), (3, 9563320), (4, 7172490), (5, 5737992), (6, 4781660), (8, 3586245), (10, 2868996), (12, 2390830), (13, 2206920), (15, 1912664), (20, 1434498), (24, 1195415), (26, 1103460), (30, 956332), (39, 735640), (40, 717249), (52, 551730), (53, 541320), (60, 478166), (65, 441384), (78, 367820), (104, 275865), (106, 270660), (120, 239083), (130, 220692), (156, 183910), (159, 180440), (195, 147128), (212, 135330), (260, 110346), (265, 108264), (312, 91955), (318, 90220), (347, 82680), (390, 73564), (424, 67665), (520, 55173), (530, 54132), (636, 45110), (689, 41640), (694, 41340), (780, 36782), (795, 36088), (1041, 27560), (1060, 27066), (1272, 22555), (1378, 20820), (1388, 20670), (1560, 18391), (1590, 18044), (1735, 16536), (2067, 13880), (2082, 13780), (2120, 13533), (2756, 10410), (2776, 10335), (3180, 9022), (3445, 8328), (3470, 8268), (4134, 6940), (4164, 6890), (4511, 6360), (5205, 5512)]