409220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 1021440

約数和(自身を除く): 612220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 79, 140, 148, 158, 185, 259, 316, 370, 395, 518, 553, 740, 790, 1036, 1106, 1295, 1580, 2212, 2590, 2765, 2923, 5180, 5530, 5846, 11060, 11692, 14615, 20461, 29230, 40922, 58460, 81844, 102305, 204610, 409220]

約数ペア:

[(1, 409220), (2, 204610), (4, 102305), (5, 81844), (7, 58460), (10, 40922), (14, 29230), (20, 20461), (28, 14615), (35, 11692), (37, 11060), (70, 5846), (74, 5530), (79, 5180), (140, 2923), (148, 2765), (158, 2590), (185, 2212), (259, 1580), (316, 1295), (370, 1106), (395, 1036), (518, 790), (553, 740)]