18812820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:385

約数の個数: 96

約数和(自身を含む): 57576960

約数和(自身を除く): 38764140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 89, 130, 156, 178, 195, 260, 267, 271, 356, 390, 445, 534, 542, 780, 813, 890, 1068, 1084, 1157, 1335, 1355, 1626, 1780, 2314, 2670, 2710, 3252, 3471, 3523, 4065, 4628, 5340, 5420, 5785, 6942, 7046, 8130, 10569, 11570, 13884, 14092, 16260, 17355, 17615, 21138, 23140, 24119, 34710, 35230, 42276, 48238, 52845, 69420, 70460, 72357, 96476, 105690, 120595, 144714, 211380, 241190, 289428, 313547, 361785, 482380, 627094, 723570, 940641, 1254188, 1447140, 1567735, 1881282, 3135470, 3762564, 4703205, 6270940, 9406410, 18812820]

約数ペア:

[(1, 18812820), (2, 9406410), (3, 6270940), (4, 4703205), (5, 3762564), (6, 3135470), (10, 1881282), (12, 1567735), (13, 1447140), (15, 1254188), (20, 940641), (26, 723570), (30, 627094), (39, 482380), (52, 361785), (60, 313547), (65, 289428), (78, 241190), (89, 211380), (130, 144714), (156, 120595), (178, 105690), (195, 96476), (260, 72357), (267, 70460), (271, 69420), (356, 52845), (390, 48238), (445, 42276), (534, 35230), (542, 34710), (780, 24119), (813, 23140), (890, 21138), (1068, 17615), (1084, 17355), (1157, 16260), (1335, 14092), (1355, 13884), (1626, 11570), (1780, 10569), (2314, 8130), (2670, 7046), (2710, 6942), (3252, 5785), (3471, 5420), (3523, 5340), (4065, 4628)]