81573156

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:676

約数の個数: 144

約数和(自身を含む): 257653760

約数和(自身を除く): 176080604

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 63, 76, 81, 84, 108, 114, 126, 133, 162, 171, 189, 228, 243, 252, 266, 324, 342, 378, 399, 486, 513, 532, 567, 631, 684, 756, 798, 972, 1026, 1134, 1197, 1262, 1539, 1596, 1701, 1893, 2052, 2268, 2394, 2524, 3078, 3402, 3591, 3786, 4417, 4617, 4788, 5679, 6156, 6804, 7182, 7572, 8834, 9234, 10773, 11358, 11989, 13251, 14364, 17037, 17668, 18468, 21546, 22716, 23978, 26502, 32319, 34074, 35967, 39753, 43092, 47956, 51111, 53004, 64638, 68148, 71934, 79506, 83923, 102222, 107901, 119259, 129276, 143868, 153333, 159012, 167846, 204444, 215802, 238518, 251769, 306666, 323703, 335692, 357777, 431604, 477036, 503538, 613332, 647406, 715554, 755307, 971109, 1007076, 1073331, 1294812, 1431108, 1510614, 1942218, 2146662, 2265921, 2913327, 3021228, 3884436, 4293324, 4531842, 5826654, 6797763, 9063684, 11653308, 13595526, 20393289, 27191052, 40786578, 81573156]

約数ペア:

[(1, 81573156), (2, 40786578), (3, 27191052), (4, 20393289), (6, 13595526), (7, 11653308), (9, 9063684), (12, 6797763), (14, 5826654), (18, 4531842), (19, 4293324), (21, 3884436), (27, 3021228), (28, 2913327), (36, 2265921), (38, 2146662), (42, 1942218), (54, 1510614), (57, 1431108), (63, 1294812), (76, 1073331), (81, 1007076), (84, 971109), (108, 755307), (114, 715554), (126, 647406), (133, 613332), (162, 503538), (171, 477036), (189, 431604), (228, 357777), (243, 335692), (252, 323703), (266, 306666), (324, 251769), (342, 238518), (378, 215802), (399, 204444), (486, 167846), (513, 159012), (532, 153333), (567, 143868), (631, 129276), (684, 119259), (756, 107901), (798, 102222), (972, 83923), (1026, 79506), (1134, 71934), (1197, 68148), (1262, 64638), (1539, 53004), (1596, 51111), (1701, 47956), (1893, 43092), (2052, 39753), (2268, 35967), (2394, 34074), (2524, 32319), (3078, 26502), (3402, 23978), (3591, 22716), (3786, 21546), (4417, 18468), (4617, 17668), (4788, 17037), (5679, 14364), (6156, 13251), (6804, 11989), (7182, 11358), (7572, 10773), (8834, 9234)]