201771440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1481}}^1$

素因数の和:1638

約数の個数: 80

約数和(自身を含む): 509404896

約数和(自身を除く): 307633456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 131, 208, 260, 262, 520, 524, 655, 1040, 1048, 1310, 1481, 1703, 2096, 2620, 2962, 3406, 5240, 5924, 6812, 7405, 8515, 10480, 11848, 13624, 14810, 17030, 19253, 23696, 27248, 29620, 34060, 38506, 59240, 68120, 77012, 96265, 118480, 136240, 154024, 192530, 194011, 308048, 385060, 388022, 770120, 776044, 970055, 1540240, 1552088, 1940110, 2522143, 3104176, 3880220, 5044286, 7760440, 10088572, 12610715, 15520880, 20177144, 25221430, 40354288, 50442860, 100885720, 201771440]

約数ペア:

[(1, 201771440), (2, 100885720), (4, 50442860), (5, 40354288), (8, 25221430), (10, 20177144), (13, 15520880), (16, 12610715), (20, 10088572), (26, 7760440), (40, 5044286), (52, 3880220), (65, 3104176), (80, 2522143), (104, 1940110), (130, 1552088), (131, 1540240), (208, 970055), (260, 776044), (262, 770120), (520, 388022), (524, 385060), (655, 308048), (1040, 194011), (1048, 192530), (1310, 154024), (1481, 136240), (1703, 118480), (2096, 96265), (2620, 77012), (2962, 68120), (3406, 59240), (5240, 38506), (5924, 34060), (6812, 29620), (7405, 27248), (8515, 23696), (10480, 19253), (11848, 17030), (13624, 14810)]