214502020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 496742400

約数和(自身を除く): 282240380

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 131, 139, 155, 190, 262, 278, 310, 380, 524, 556, 589, 620, 655, 695, 1178, 1310, 1390, 2356, 2489, 2620, 2641, 2780, 2945, 4061, 4309, 4978, 5282, 5890, 8122, 8618, 9956, 10564, 11780, 12445, 13205, 16244, 17236, 18209, 20305, 21545, 24890, 26410, 36418, 40610, 43090, 49780, 52820, 72836, 77159, 81220, 81871, 86180, 91045, 154318, 163742, 182090, 308636, 327484, 345971, 364180, 385795, 409355, 564479, 691942, 771590, 818710, 1128958, 1383884, 1543180, 1637420, 1729855, 2257916, 2822395, 3459710, 5644790, 6919420, 10725101, 11289580, 21450202, 42900404, 53625505, 107251010, 214502020]

約数ペア:

[(1, 214502020), (2, 107251010), (4, 53625505), (5, 42900404), (10, 21450202), (19, 11289580), (20, 10725101), (31, 6919420), (38, 5644790), (62, 3459710), (76, 2822395), (95, 2257916), (124, 1729855), (131, 1637420), (139, 1543180), (155, 1383884), (190, 1128958), (262, 818710), (278, 771590), (310, 691942), (380, 564479), (524, 409355), (556, 385795), (589, 364180), (620, 345971), (655, 327484), (695, 308636), (1178, 182090), (1310, 163742), (1390, 154318), (2356, 91045), (2489, 86180), (2620, 81871), (2641, 81220), (2780, 77159), (2945, 72836), (4061, 52820), (4309, 49780), (4978, 43090), (5282, 40610), (5890, 36418), (8122, 26410), (8618, 24890), (9956, 21545), (10564, 20305), (11780, 18209), (12445, 17236), (13205, 16244)]