20003880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12823}}^1$

素因数の和:12850

約数の個数: 64

約数和(自身を含む): 64632960

約数和(自身を除く): 44629080

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, 12823, 25646, 38469, 51292, 64115, 76938, 102584, 128230, 153876, 166699, 192345, 256460, 307752, 333398, 384690, 500097, 512920, 666796, 769380, 833495, 1000194, 1333592, 1538760, 1666990, 2000388, 2500485, 3333980, 4000776, 5000970, 6667960, 10001940, 20003880]

約数ペア:

[(1, 20003880), (2, 10001940), (3, 6667960), (4, 5000970), (5, 4000776), (6, 3333980), (8, 2500485), (10, 2000388), (12, 1666990), (13, 1538760), (15, 1333592), (20, 1000194), (24, 833495), (26, 769380), (30, 666796), (39, 512920), (40, 500097), (52, 384690), (60, 333398), (65, 307752), (78, 256460), (104, 192345), (120, 166699), (130, 153876), (156, 128230), (195, 102584), (260, 76938), (312, 64115), (390, 51292), (520, 38469), (780, 25646), (1560, 12823)]