217531980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2857}}^1$

素因数の和:2925

約数の個数: 120

約数和(自身を含む): 697169088

約数和(自身を除く): 479637108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 47, 54, 60, 81, 90, 94, 108, 135, 141, 162, 180, 188, 235, 270, 282, 324, 405, 423, 470, 540, 564, 705, 810, 846, 940, 1269, 1410, 1620, 1692, 2115, 2538, 2820, 2857, 3807, 4230, 5076, 5714, 6345, 7614, 8460, 8571, 11428, 12690, 14285, 15228, 17142, 19035, 25380, 25713, 28570, 34284, 38070, 42855, 51426, 57140, 76140, 77139, 85710, 102852, 128565, 134279, 154278, 171420, 231417, 257130, 268558, 308556, 385695, 402837, 462834, 514260, 537116, 671395, 771390, 805674, 925668, 1157085, 1208511, 1342790, 1542780, 1611348, 2014185, 2314170, 2417022, 2685580, 3625533, 4028370, 4628340, 4834044, 6042555, 7251066, 8056740, 10876599, 12085110, 14502132, 18127665, 21753198, 24170220, 36255330, 43506396, 54382995, 72510660, 108765990, 217531980]

約数ペア:

[(1, 217531980), (2, 108765990), (3, 72510660), (4, 54382995), (5, 43506396), (6, 36255330), (9, 24170220), (10, 21753198), (12, 18127665), (15, 14502132), (18, 12085110), (20, 10876599), (27, 8056740), (30, 7251066), (36, 6042555), (45, 4834044), (47, 4628340), (54, 4028370), (60, 3625533), (81, 2685580), (90, 2417022), (94, 2314170), (108, 2014185), (135, 1611348), (141, 1542780), (162, 1342790), (180, 1208511), (188, 1157085), (235, 925668), (270, 805674), (282, 771390), (324, 671395), (405, 537116), (423, 514260), (470, 462834), (540, 402837), (564, 385695), (705, 308556), (810, 268558), (846, 257130), (940, 231417), (1269, 171420), (1410, 154278), (1620, 134279), (1692, 128565), (2115, 102852), (2538, 85710), (2820, 77139), (2857, 76140), (3807, 57140), (4230, 51426), (5076, 42855), (5714, 38070), (6345, 34284), (7614, 28570), (8460, 25713), (8571, 25380), (11428, 19035), (12690, 17142), (14285, 15228)]