256098420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:806

約数の個数: 144

約数和(自身を含む): 816117120

約数和(自身を除く): 560018700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 71, 87, 90, 116, 142, 145, 174, 180, 213, 261, 284, 290, 348, 355, 426, 435, 522, 580, 639, 691, 710, 852, 870, 1044, 1065, 1278, 1305, 1382, 1420, 1740, 2059, 2073, 2130, 2556, 2610, 2764, 3195, 3455, 4118, 4146, 4260, 5220, 6177, 6219, 6390, 6910, 8236, 8292, 10295, 10365, 12354, 12438, 12780, 13820, 18531, 20039, 20590, 20730, 24708, 24876, 30885, 31095, 37062, 40078, 41180, 41460, 49061, 60117, 61770, 62190, 74124, 80156, 92655, 98122, 100195, 120234, 123540, 124380, 147183, 180351, 185310, 196244, 200390, 240468, 245305, 294366, 300585, 360702, 370620, 400780, 441549, 490610, 588732, 601170, 721404, 735915, 883098, 901755, 981220, 1202340, 1422769, 1471830, 1766196, 1803510, 2207745, 2845538, 2943660, 3607020, 4268307, 4415490, 5691076, 7113845, 8536614, 8830980, 12804921, 14227690, 17073228, 21341535, 25609842, 28455380, 42683070, 51219684, 64024605, 85366140, 128049210, 256098420]

約数ペア:

[(1, 256098420), (2, 128049210), (3, 85366140), (4, 64024605), (5, 51219684), (6, 42683070), (9, 28455380), (10, 25609842), (12, 21341535), (15, 17073228), (18, 14227690), (20, 12804921), (29, 8830980), (30, 8536614), (36, 7113845), (45, 5691076), (58, 4415490), (60, 4268307), (71, 3607020), (87, 2943660), (90, 2845538), (116, 2207745), (142, 1803510), (145, 1766196), (174, 1471830), (180, 1422769), (213, 1202340), (261, 981220), (284, 901755), (290, 883098), (348, 735915), (355, 721404), (426, 601170), (435, 588732), (522, 490610), (580, 441549), (639, 400780), (691, 370620), (710, 360702), (852, 300585), (870, 294366), (1044, 245305), (1065, 240468), (1278, 200390), (1305, 196244), (1382, 185310), (1420, 180351), (1740, 147183), (2059, 124380), (2073, 123540), (2130, 120234), (2556, 100195), (2610, 98122), (2764, 92655), (3195, 80156), (3455, 74124), (4118, 62190), (4146, 61770), (4260, 60117), (5220, 49061), (6177, 41460), (6219, 41180), (6390, 40078), (6910, 37062), (8236, 31095), (8292, 30885), (10295, 24876), (10365, 24708), (12354, 20730), (12438, 20590), (12780, 20039), (13820, 18531)]