247654880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{631}}^1$

素因数の和:880

約数の個数: 96

約数和(自身を含む): 642152448

約数和(自身を除く): 394497568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 223, 352, 440, 446, 631, 880, 892, 1115, 1262, 1760, 1784, 2230, 2453, 2524, 3155, 3568, 4460, 4906, 5048, 6310, 6941, 7136, 8920, 9812, 10096, 12265, 12620, 13882, 17840, 19624, 20192, 24530, 25240, 27764, 34705, 35680, 39248, 49060, 50480, 55528, 69410, 78496, 98120, 100960, 111056, 138820, 140713, 196240, 222112, 277640, 281426, 392480, 555280, 562852, 703565, 1110560, 1125704, 1407130, 1547843, 2251408, 2814260, 3095686, 4502816, 5628520, 6191372, 7739215, 11257040, 12382744, 15478430, 22514080, 24765488, 30956860, 49530976, 61913720, 123827440, 247654880]

約数ペア:

[(1, 247654880), (2, 123827440), (4, 61913720), (5, 49530976), (8, 30956860), (10, 24765488), (11, 22514080), (16, 15478430), (20, 12382744), (22, 11257040), (32, 7739215), (40, 6191372), (44, 5628520), (55, 4502816), (80, 3095686), (88, 2814260), (110, 2251408), (160, 1547843), (176, 1407130), (220, 1125704), (223, 1110560), (352, 703565), (440, 562852), (446, 555280), (631, 392480), (880, 281426), (892, 277640), (1115, 222112), (1262, 196240), (1760, 140713), (1784, 138820), (2230, 111056), (2453, 100960), (2524, 98120), (3155, 78496), (3568, 69410), (4460, 55528), (4906, 50480), (5048, 49060), (6310, 39248), (6941, 35680), (7136, 34705), (8920, 27764), (9812, 25240), (10096, 24530), (12265, 20192), (12620, 19624), (13882, 17840)]