7802900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 19748736

約数和(自身を除く): 11945836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 71, 100, 140, 142, 157, 175, 284, 314, 350, 355, 497, 628, 700, 710, 785, 994, 1099, 1420, 1570, 1775, 1988, 2198, 2485, 3140, 3550, 3925, 4396, 4970, 5495, 7100, 7850, 9940, 10990, 11147, 12425, 15700, 21980, 22294, 24850, 27475, 44588, 49700, 54950, 55735, 78029, 109900, 111470, 156058, 222940, 278675, 312116, 390145, 557350, 780290, 1114700, 1560580, 1950725, 3901450, 7802900]

約数ペア:

[(1, 7802900), (2, 3901450), (4, 1950725), (5, 1560580), (7, 1114700), (10, 780290), (14, 557350), (20, 390145), (25, 312116), (28, 278675), (35, 222940), (50, 156058), (70, 111470), (71, 109900), (100, 78029), (140, 55735), (142, 54950), (157, 49700), (175, 44588), (284, 27475), (314, 24850), (350, 22294), (355, 21980), (497, 15700), (628, 12425), (700, 11147), (710, 10990), (785, 9940), (994, 7850), (1099, 7100), (1420, 5495), (1570, 4970), (1775, 4396), (1988, 3925), (2198, 3550), (2485, 3140)]