18998460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:404

約数の個数: 144

約数和(自身を含む): 64943424

約数和(自身を除く): 45944964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 23, 26, 30, 36, 39, 45, 46, 52, 60, 65, 69, 78, 90, 92, 115, 117, 130, 138, 156, 180, 195, 207, 230, 234, 260, 276, 299, 345, 353, 390, 414, 460, 468, 585, 598, 690, 706, 780, 828, 897, 1035, 1059, 1170, 1196, 1380, 1412, 1495, 1765, 1794, 2070, 2118, 2340, 2691, 2990, 3177, 3530, 3588, 4140, 4236, 4485, 4589, 5295, 5382, 5980, 6354, 7060, 8119, 8970, 9178, 10590, 10764, 12708, 13455, 13767, 15885, 16238, 17940, 18356, 21180, 22945, 24357, 26910, 27534, 31770, 32476, 40595, 41301, 45890, 48714, 53820, 55068, 63540, 68835, 73071, 81190, 82602, 91780, 97428, 105547, 121785, 137670, 146142, 162380, 165204, 206505, 211094, 243570, 275340, 292284, 316641, 365355, 413010, 422188, 487140, 527735, 633282, 730710, 826020, 949923, 1055470, 1266564, 1461420, 1583205, 1899846, 2110940, 3166410, 3799692, 4749615, 6332820, 9499230, 18998460]

約数ペア:

[(1, 18998460), (2, 9499230), (3, 6332820), (4, 4749615), (5, 3799692), (6, 3166410), (9, 2110940), (10, 1899846), (12, 1583205), (13, 1461420), (15, 1266564), (18, 1055470), (20, 949923), (23, 826020), (26, 730710), (30, 633282), (36, 527735), (39, 487140), (45, 422188), (46, 413010), (52, 365355), (60, 316641), (65, 292284), (69, 275340), (78, 243570), (90, 211094), (92, 206505), (115, 165204), (117, 162380), (130, 146142), (138, 137670), (156, 121785), (180, 105547), (195, 97428), (207, 91780), (230, 82602), (234, 81190), (260, 73071), (276, 68835), (299, 63540), (345, 55068), (353, 53820), (390, 48714), (414, 45890), (460, 41301), (468, 40595), (585, 32476), (598, 31770), (690, 27534), (706, 26910), (780, 24357), (828, 22945), (897, 21180), (1035, 18356), (1059, 17940), (1170, 16238), (1196, 15885), (1380, 13767), (1412, 13455), (1495, 12708), (1765, 10764), (1794, 10590), (2070, 9178), (2118, 8970), (2340, 8119), (2691, 7060), (2990, 6354), (3177, 5980), (3530, 5382), (3588, 5295), (4140, 4589), (4236, 4485)]