245809980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1439}}^1$

素因数の和:1540

約数の個数: 144

約数和(自身を含む): 814544640

約数和(自身を除く): 568734660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 73, 78, 90, 117, 130, 146, 156, 180, 195, 219, 234, 260, 292, 365, 390, 438, 468, 585, 657, 730, 780, 876, 949, 1095, 1170, 1314, 1439, 1460, 1898, 2190, 2340, 2628, 2847, 2878, 3285, 3796, 4317, 4380, 4745, 5694, 5756, 6570, 7195, 8541, 8634, 9490, 11388, 12951, 13140, 14235, 14390, 17082, 17268, 18707, 18980, 21585, 25902, 28470, 28780, 34164, 37414, 42705, 43170, 51804, 56121, 56940, 64755, 74828, 85410, 86340, 93535, 105047, 112242, 129510, 168363, 170820, 187070, 210094, 224484, 259020, 280605, 315141, 336726, 374140, 420188, 525235, 561210, 630282, 673452, 841815, 945423, 1050470, 1122420, 1260564, 1365611, 1575705, 1683630, 1890846, 2100940, 2731222, 3151410, 3367260, 3781692, 4096833, 4727115, 5462444, 6302820, 6828055, 8193666, 9454230, 12290499, 13656110, 16387332, 18908460, 20484165, 24580998, 27312220, 40968330, 49161996, 61452495, 81936660, 122904990, 245809980]

約数ペア:

[(1, 245809980), (2, 122904990), (3, 81936660), (4, 61452495), (5, 49161996), (6, 40968330), (9, 27312220), (10, 24580998), (12, 20484165), (13, 18908460), (15, 16387332), (18, 13656110), (20, 12290499), (26, 9454230), (30, 8193666), (36, 6828055), (39, 6302820), (45, 5462444), (52, 4727115), (60, 4096833), (65, 3781692), (73, 3367260), (78, 3151410), (90, 2731222), (117, 2100940), (130, 1890846), (146, 1683630), (156, 1575705), (180, 1365611), (195, 1260564), (219, 1122420), (234, 1050470), (260, 945423), (292, 841815), (365, 673452), (390, 630282), (438, 561210), (468, 525235), (585, 420188), (657, 374140), (730, 336726), (780, 315141), (876, 280605), (949, 259020), (1095, 224484), (1170, 210094), (1314, 187070), (1439, 170820), (1460, 168363), (1898, 129510), (2190, 112242), (2340, 105047), (2628, 93535), (2847, 86340), (2878, 85410), (3285, 74828), (3796, 64755), (4317, 56940), (4380, 56121), (4745, 51804), (5694, 43170), (5756, 42705), (6570, 37414), (7195, 34164), (8541, 28780), (8634, 28470), (9490, 25902), (11388, 21585), (12951, 18980), (13140, 18707), (14235, 17268), (14390, 17082)]