28327720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{751}}^1$

素因数の和:826

約数の個数: 64

約数和(自身を含む): 68221440

約数和(自身を除く): 39893720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 82, 92, 115, 164, 184, 205, 230, 328, 410, 460, 751, 820, 920, 943, 1502, 1640, 1886, 3004, 3755, 3772, 4715, 6008, 7510, 7544, 9430, 15020, 17273, 18860, 30040, 30791, 34546, 37720, 61582, 69092, 86365, 123164, 138184, 153955, 172730, 246328, 307910, 345460, 615820, 690920, 708193, 1231640, 1416386, 2832772, 3540965, 5665544, 7081930, 14163860, 28327720]

約数ペア:

[(1, 28327720), (2, 14163860), (4, 7081930), (5, 5665544), (8, 3540965), (10, 2832772), (20, 1416386), (23, 1231640), (40, 708193), (41, 690920), (46, 615820), (82, 345460), (92, 307910), (115, 246328), (164, 172730), (184, 153955), (205, 138184), (230, 123164), (328, 86365), (410, 69092), (460, 61582), (751, 37720), (820, 34546), (920, 30791), (943, 30040), (1502, 18860), (1640, 17273), (1886, 15020), (3004, 9430), (3755, 7544), (3772, 7510), (4715, 6008)]