205129820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1091}}^1$

素因数の和:1203

約数の個数: 96

約数和(自身を含む): 528353280

約数和(自身を除く): 323223460

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 79, 85, 119, 140, 158, 170, 238, 316, 340, 395, 476, 553, 595, 790, 1091, 1106, 1190, 1343, 1580, 2182, 2212, 2380, 2686, 2765, 4364, 5372, 5455, 5530, 6715, 7637, 9401, 10910, 11060, 13430, 15274, 18547, 18802, 21820, 26860, 30548, 37094, 37604, 38185, 47005, 74188, 76370, 86189, 92735, 94010, 129829, 152740, 172378, 185470, 188020, 259658, 344756, 370940, 430945, 519316, 603323, 649145, 861890, 1206646, 1298290, 1465213, 1723780, 2413292, 2596580, 2930426, 3016615, 5860852, 6033230, 7326065, 10256491, 12066460, 14652130, 20512982, 29304260, 41025964, 51282455, 102564910, 205129820]

約数ペア:

[(1, 205129820), (2, 102564910), (4, 51282455), (5, 41025964), (7, 29304260), (10, 20512982), (14, 14652130), (17, 12066460), (20, 10256491), (28, 7326065), (34, 6033230), (35, 5860852), (68, 3016615), (70, 2930426), (79, 2596580), (85, 2413292), (119, 1723780), (140, 1465213), (158, 1298290), (170, 1206646), (238, 861890), (316, 649145), (340, 603323), (395, 519316), (476, 430945), (553, 370940), (595, 344756), (790, 259658), (1091, 188020), (1106, 185470), (1190, 172378), (1343, 152740), (1580, 129829), (2182, 94010), (2212, 92735), (2380, 86189), (2686, 76370), (2765, 74188), (4364, 47005), (5372, 38185), (5455, 37604), (5530, 37094), (6715, 30548), (7637, 26860), (9401, 21820), (10910, 18802), (11060, 18547), (13430, 15274)]