1277937440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{167}}^1\times {\mathrm{283}}^1$

素因数の和:491

約数の個数: 144

約数和(自身を含む): 3300429888

約数和(自身を除く): 2022492448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 167, 169, 208, 260, 283, 334, 338, 416, 520, 566, 668, 676, 835, 845, 1040, 1132, 1336, 1352, 1415, 1670, 1690, 2080, 2171, 2264, 2672, 2704, 2830, 3340, 3380, 3679, 4342, 4528, 5344, 5408, 5660, 6680, 6760, 7358, 8684, 9056, 10855, 11320, 13360, 13520, 14716, 17368, 18395, 21710, 22640, 26720, 27040, 28223, 29432, 34736, 36790, 43420, 45280, 47261, 47827, 56446, 58864, 69472, 73580, 86840, 94522, 95654, 112892, 117728, 141115, 147160, 173680, 189044, 191308, 225784, 236305, 239135, 282230, 294320, 347360, 378088, 382616, 451568, 472610, 478270, 564460, 588640, 614393, 756176, 765232, 903136, 945220, 956540, 1128920, 1228786, 1512352, 1530464, 1890440, 1913080, 2257840, 2457572, 3071965, 3780880, 3826160, 4515680, 4915144, 6143930, 7561760, 7652320, 7987109, 9830288, 12287860, 15974218, 19660576, 24575720, 31948436, 39935545, 49151440, 63896872, 79871090, 98302880, 127793744, 159742180, 255587488, 319484360, 638968720, 1277937440]

約数ペア:

[(1, 1277937440), (2, 638968720), (4, 319484360), (5, 255587488), (8, 159742180), (10, 127793744), (13, 98302880), (16, 79871090), (20, 63896872), (26, 49151440), (32, 39935545), (40, 31948436), (52, 24575720), (65, 19660576), (80, 15974218), (104, 12287860), (130, 9830288), (160, 7987109), (167, 7652320), (169, 7561760), (208, 6143930), (260, 4915144), (283, 4515680), (334, 3826160), (338, 3780880), (416, 3071965), (520, 2457572), (566, 2257840), (668, 1913080), (676, 1890440), (835, 1530464), (845, 1512352), (1040, 1228786), (1132, 1128920), (1336, 956540), (1352, 945220), (1415, 903136), (1670, 765232), (1690, 756176), (2080, 614393), (2171, 588640), (2264, 564460), (2672, 478270), (2704, 472610), (2830, 451568), (3340, 382616), (3380, 378088), (3679, 347360), (4342, 294320), (4528, 282230), (5344, 239135), (5408, 236305), (5660, 225784), (6680, 191308), (6760, 189044), (7358, 173680), (8684, 147160), (9056, 141115), (10855, 117728), (11320, 112892), (13360, 95654), (13520, 94522), (14716, 86840), (17368, 73580), (18395, 69472), (21710, 58864), (22640, 56446), (26720, 47827), (27040, 47261), (28223, 45280), (29432, 43420), (34736, 36790)]