9780500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 22084608

約数和(自身を除く): 12304108

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 631, 775, 1262, 1550, 2524, 3100, 3155, 3875, 6310, 7750, 12620, 15500, 15775, 19561, 31550, 39122, 63100, 78244, 78875, 97805, 157750, 195610, 315500, 391220, 489025, 978050, 1956100, 2445125, 4890250, 9780500]

約数ペア:

[(1, 9780500), (2, 4890250), (4, 2445125), (5, 1956100), (10, 978050), (20, 489025), (25, 391220), (31, 315500), (50, 195610), (62, 157750), (100, 97805), (124, 78875), (125, 78244), (155, 63100), (250, 39122), (310, 31550), (500, 19561), (620, 15775), (631, 15500), (775, 12620), (1262, 7750), (1550, 6310), (2524, 3875), (3100, 3155)]