291287880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20747}}^1$

素因数の和:20780

約数の個数: 128

約数和(自身を含む): 1045699200

約数和(自身を除く): 754411320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1560, 1755, 2340, 2808, 3510, 4680, 7020, 14040, 20747, 41494, 62241, 82988, 103735, 124482, 165976, 186723, 207470, 248964, 269711, 311205, 373446, 414940, 497928, 539422, 560169, 622410, 746892, 809133, 829880, 933615, 1078844, 1120338, 1244820, 1348555, 1493784, 1618266, 1867230, 2157688, 2240676, 2427399, 2489640, 2697110, 2800845, 3236532, 3734460, 4045665, 4481352, 4854798, 5394220, 5601690, 6473064, 7282197, 7468920, 8091330, 9709596, 10788440, 11203380, 12136995, 14564394, 16182660, 19419192, 22406760, 24273990, 29128788, 32365320, 36410985, 48547980, 58257576, 72821970, 97095960, 145643940, 291287880]

約数ペア:

[(1, 291287880), (2, 145643940), (3, 97095960), (4, 72821970), (5, 58257576), (6, 48547980), (8, 36410985), (9, 32365320), (10, 29128788), (12, 24273990), (13, 22406760), (15, 19419192), (18, 16182660), (20, 14564394), (24, 12136995), (26, 11203380), (27, 10788440), (30, 9709596), (36, 8091330), (39, 7468920), (40, 7282197), (45, 6473064), (52, 5601690), (54, 5394220), (60, 4854798), (65, 4481352), (72, 4045665), (78, 3734460), (90, 3236532), (104, 2800845), (108, 2697110), (117, 2489640), (120, 2427399), (130, 2240676), (135, 2157688), (156, 1867230), (180, 1618266), (195, 1493784), (216, 1348555), (234, 1244820), (260, 1120338), (270, 1078844), (312, 933615), (351, 829880), (360, 809133), (390, 746892), (468, 622410), (520, 560169), (540, 539422), (585, 497928), (702, 414940), (780, 373446), (936, 311205), (1080, 269711), (1170, 248964), (1404, 207470), (1560, 186723), (1755, 165976), (2340, 124482), (2808, 103735), (3510, 82988), (4680, 62241), (7020, 41494), (14040, 20747)]