25420100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{787}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 61558560

約数和(自身を除く): 36138460

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 68, 76, 85, 95, 100, 170, 190, 323, 340, 380, 425, 475, 646, 787, 850, 950, 1292, 1574, 1615, 1700, 1900, 3148, 3230, 3935, 6460, 7870, 8075, 13379, 14953, 15740, 16150, 19675, 26758, 29906, 32300, 39350, 53516, 59812, 66895, 74765, 78700, 133790, 149530, 254201, 267580, 299060, 334475, 373825, 508402, 668950, 747650, 1016804, 1271005, 1337900, 1495300, 2542010, 5084020, 6355025, 12710050, 25420100]

約数ペア:

[(1, 25420100), (2, 12710050), (4, 6355025), (5, 5084020), (10, 2542010), (17, 1495300), (19, 1337900), (20, 1271005), (25, 1016804), (34, 747650), (38, 668950), (50, 508402), (68, 373825), (76, 334475), (85, 299060), (95, 267580), (100, 254201), (170, 149530), (190, 133790), (323, 78700), (340, 74765), (380, 66895), (425, 59812), (475, 53516), (646, 39350), (787, 32300), (850, 29906), (950, 26758), (1292, 19675), (1574, 16150), (1615, 15740), (1700, 14953), (1900, 13379), (3148, 8075), (3230, 7870), (3935, 6460)]