20727408

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{563}}^1$

素因数の和:646

約数の個数: 80

約数和(自身を含む): 58746240

約数和(自身を除く): 38018832

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 59, 78, 104, 118, 156, 177, 208, 236, 312, 354, 472, 563, 624, 708, 767, 944, 1126, 1416, 1534, 1689, 2252, 2301, 2832, 3068, 3378, 4504, 4602, 6136, 6756, 7319, 9008, 9204, 12272, 13512, 14638, 18408, 21957, 27024, 29276, 33217, 36816, 43914, 58552, 66434, 87828, 99651, 117104, 132868, 175656, 199302, 265736, 351312, 398604, 431821, 531472, 797208, 863642, 1295463, 1594416, 1727284, 2590926, 3454568, 5181852, 6909136, 10363704, 20727408]

約数ペア:

[(1, 20727408), (2, 10363704), (3, 6909136), (4, 5181852), (6, 3454568), (8, 2590926), (12, 1727284), (13, 1594416), (16, 1295463), (24, 863642), (26, 797208), (39, 531472), (48, 431821), (52, 398604), (59, 351312), (78, 265736), (104, 199302), (118, 175656), (156, 132868), (177, 117104), (208, 99651), (236, 87828), (312, 66434), (354, 58552), (472, 43914), (563, 36816), (624, 33217), (708, 29276), (767, 27024), (944, 21957), (1126, 18408), (1416, 14638), (1534, 13512), (1689, 12272), (2252, 9204), (2301, 9008), (2832, 7319), (3068, 6756), (3378, 6136), (4504, 4602)]