199912180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1459}}^1$

素因数の和:1529

約数の個数: 96

約数和(自身を含む): 494484480

約数和(自身を除く): 294572300

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 31, 34, 52, 62, 65, 68, 85, 124, 130, 155, 170, 221, 260, 310, 340, 403, 442, 527, 620, 806, 884, 1054, 1105, 1459, 1612, 2015, 2108, 2210, 2635, 2918, 4030, 4420, 5270, 5836, 6851, 7295, 8060, 10540, 13702, 14590, 18967, 24803, 27404, 29180, 34255, 37934, 45229, 49606, 68510, 75868, 90458, 94835, 99212, 124015, 137020, 180916, 189670, 226145, 248030, 322439, 379340, 452290, 496060, 587977, 644878, 768893, 904580, 1175954, 1289756, 1537786, 1612195, 2351908, 2939885, 3075572, 3224390, 3844465, 5879770, 6448780, 7688930, 9995609, 11759540, 15377860, 19991218, 39982436, 49978045, 99956090, 199912180]

約数ペア:

[(1, 199912180), (2, 99956090), (4, 49978045), (5, 39982436), (10, 19991218), (13, 15377860), (17, 11759540), (20, 9995609), (26, 7688930), (31, 6448780), (34, 5879770), (52, 3844465), (62, 3224390), (65, 3075572), (68, 2939885), (85, 2351908), (124, 1612195), (130, 1537786), (155, 1289756), (170, 1175954), (221, 904580), (260, 768893), (310, 644878), (340, 587977), (403, 496060), (442, 452290), (527, 379340), (620, 322439), (806, 248030), (884, 226145), (1054, 189670), (1105, 180916), (1459, 137020), (1612, 124015), (2015, 99212), (2108, 94835), (2210, 90458), (2635, 75868), (2918, 68510), (4030, 49606), (4420, 45229), (5270, 37934), (5836, 34255), (6851, 29180), (7295, 27404), (8060, 24803), (10540, 18967), (13702, 14590)]