28724280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18413}}^1$

素因数の和:18440

約数の個数: 64

約数和(自身を含む): 92806560

約数和(自身を除く): 64082280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 18413, 36826, 55239, 73652, 92065, 110478, 147304, 184130, 220956, 239369, 276195, 368260, 441912, 478738, 552390, 718107, 736520, 957476, 1104780, 1196845, 1436214, 1914952, 2209560, 2393690, 2872428, 3590535, 4787380, 5744856, 7181070, 9574760, 14362140, 28724280]

約数ペア:

[(1, 28724280), (2, 14362140), (3, 9574760), (4, 7181070), (5, 5744856), (6, 4787380), (8, 3590535), (10, 2872428), (12, 2393690), (13, 2209560), (15, 1914952), (20, 1436214), (24, 1196845), (26, 1104780), (30, 957476), (39, 736520), (40, 718107), (52, 552390), (60, 478738), (65, 441912), (78, 368260), (104, 276195), (120, 239369), (130, 220956), (156, 184130), (195, 147304), (260, 110478), (312, 92065), (390, 73652), (520, 55239), (780, 36826), (1560, 18413)]