245995540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{56681}}^1$

素因数の和:56728

約数の個数: 48

約数和(自身を含む): 609444864

約数和(自身を除く): 363449324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 56681, 113362, 226724, 283405, 396767, 566810, 793534, 1133620, 1587068, 1757111, 1983835, 3514222, 3967670, 7028444, 7935340, 8785555, 12299777, 17571110, 24599554, 35142220, 49199108, 61498885, 122997770, 245995540]

約数ペア:

[(1, 245995540), (2, 122997770), (4, 61498885), (5, 49199108), (7, 35142220), (10, 24599554), (14, 17571110), (20, 12299777), (28, 8785555), (31, 7935340), (35, 7028444), (62, 3967670), (70, 3514222), (124, 1983835), (140, 1757111), (155, 1587068), (217, 1133620), (310, 793534), (434, 566810), (620, 396767), (868, 283405), (1085, 226724), (2170, 113362), (4340, 56681)]