19748040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12659}}^1$

素因数の和:12686

約数の個数: 64

約数和(自身を含む): 63806400

約数和(自身を除く): 44058360

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, 12659, 25318, 37977, 50636, 63295, 75954, 101272, 126590, 151908, 164567, 189885, 253180, 303816, 329134, 379770, 493701, 506360, 658268, 759540, 822835, 987402, 1316536, 1519080, 1645670, 1974804, 2468505, 3291340, 3949608, 4937010, 6582680, 9874020, 19748040]

約数ペア:

[(1, 19748040), (2, 9874020), (3, 6582680), (4, 4937010), (5, 3949608), (6, 3291340), (8, 2468505), (10, 1974804), (12, 1645670), (13, 1519080), (15, 1316536), (20, 987402), (24, 822835), (26, 759540), (30, 658268), (39, 506360), (40, 493701), (52, 379770), (60, 329134), (65, 303816), (78, 253180), (104, 189885), (120, 164567), (130, 151908), (156, 126590), (195, 101272), (260, 75954), (312, 63295), (390, 50636), (520, 37977), (780, 25318), (1560, 12659)]