19581250

素因数分解:

$2^1\times 5^5\times {\mathrm{13}}^1\times {\mathrm{241}}^1$

素因数の和:281

約数の個数: 48

約数和(自身を含む): 39700584

約数和(自身を除く): 20119334

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 241, 250, 325, 482, 625, 650, 1205, 1250, 1625, 2410, 3125, 3133, 3250, 6025, 6250, 6266, 8125, 12050, 15665, 16250, 30125, 31330, 40625, 60250, 78325, 81250, 150625, 156650, 301250, 391625, 753125, 783250, 1506250, 1958125, 3916250, 9790625, 19581250]

約数ペア:

[(1, 19581250), (2, 9790625), (5, 3916250), (10, 1958125), (13, 1506250), (25, 783250), (26, 753125), (50, 391625), (65, 301250), (125, 156650), (130, 150625), (241, 81250), (250, 78325), (325, 60250), (482, 40625), (625, 31330), (650, 30125), (1205, 16250), (1250, 15665), (1625, 12050), (2410, 8125), (3125, 6266), (3133, 6250), (3250, 6025)]