215220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 641088

約数和(自身を除く): 425868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 211, 255, 340, 422, 510, 633, 844, 1020, 1055, 1266, 2110, 2532, 3165, 3587, 4220, 6330, 7174, 10761, 12660, 14348, 17935, 21522, 35870, 43044, 53805, 71740, 107610, 215220]

約数ペア:

[(1, 215220), (2, 107610), (3, 71740), (4, 53805), (5, 43044), (6, 35870), (10, 21522), (12, 17935), (15, 14348), (17, 12660), (20, 10761), (30, 7174), (34, 6330), (51, 4220), (60, 3587), (68, 3165), (85, 2532), (102, 2110), (170, 1266), (204, 1055), (211, 1020), (255, 844), (340, 633), (422, 510)]