1285240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 3317760

約数和(自身を除く): 2032520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 127, 184, 220, 230, 253, 254, 440, 460, 506, 508, 635, 920, 1012, 1016, 1265, 1270, 1397, 2024, 2530, 2540, 2794, 2921, 5060, 5080, 5588, 5842, 6985, 10120, 11176, 11684, 13970, 14605, 23368, 27940, 29210, 32131, 55880, 58420, 64262, 116840, 128524, 160655, 257048, 321310, 642620, 1285240]

約数ペア:

[(1, 1285240), (2, 642620), (4, 321310), (5, 257048), (8, 160655), (10, 128524), (11, 116840), (20, 64262), (22, 58420), (23, 55880), (40, 32131), (44, 29210), (46, 27940), (55, 23368), (88, 14605), (92, 13970), (110, 11684), (115, 11176), (127, 10120), (184, 6985), (220, 5842), (230, 5588), (253, 5080), (254, 5060), (440, 2921), (460, 2794), (506, 2540), (508, 2530), (635, 2024), (920, 1397), (1012, 1270), (1016, 1265)]