280458468

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{787}}^1$

素因数の和:1337

約数の個数: 72

約数和(自身を含む): 748631520

約数和(自身を除く): 468173052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 521, 684, 787, 1042, 1563, 1574, 2084, 2361, 3126, 3148, 4689, 4722, 6252, 7083, 9378, 9444, 9899, 14166, 14953, 18756, 19798, 28332, 29697, 29906, 39596, 44859, 59394, 59812, 89091, 89718, 118788, 134577, 178182, 179436, 269154, 356364, 410027, 538308, 820054, 1230081, 1640108, 2460162, 3690243, 4920324, 7380486, 7790513, 14760972, 15581026, 23371539, 31162052, 46743078, 70114617, 93486156, 140229234, 280458468]

約数ペア:

[(1, 280458468), (2, 140229234), (3, 93486156), (4, 70114617), (6, 46743078), (9, 31162052), (12, 23371539), (18, 15581026), (19, 14760972), (36, 7790513), (38, 7380486), (57, 4920324), (76, 3690243), (114, 2460162), (171, 1640108), (228, 1230081), (342, 820054), (521, 538308), (684, 410027), (787, 356364), (1042, 269154), (1563, 179436), (1574, 178182), (2084, 134577), (2361, 118788), (3126, 89718), (3148, 89091), (4689, 59812), (4722, 59394), (6252, 44859), (7083, 39596), (9378, 29906), (9444, 29697), (9899, 28332), (14166, 19798), (14953, 18756)]