85311440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:600

約数の個数: 80

約数和(自身を含む): 211928400

約数和(自身を除く): 126616960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 149, 170, 272, 298, 340, 421, 596, 680, 745, 842, 1192, 1360, 1490, 1684, 2105, 2384, 2533, 2980, 3368, 4210, 5066, 5960, 6736, 7157, 8420, 10132, 11920, 12665, 14314, 16840, 20264, 25330, 28628, 33680, 35785, 40528, 50660, 57256, 62729, 71570, 101320, 114512, 125458, 143140, 202640, 250916, 286280, 313645, 501832, 572560, 627290, 1003664, 1066393, 1254580, 2132786, 2509160, 4265572, 5018320, 5331965, 8531144, 10663930, 17062288, 21327860, 42655720, 85311440]

約数ペア:

[(1, 85311440), (2, 42655720), (4, 21327860), (5, 17062288), (8, 10663930), (10, 8531144), (16, 5331965), (17, 5018320), (20, 4265572), (34, 2509160), (40, 2132786), (68, 1254580), (80, 1066393), (85, 1003664), (136, 627290), (149, 572560), (170, 501832), (272, 313645), (298, 286280), (340, 250916), (421, 202640), (596, 143140), (680, 125458), (745, 114512), (842, 101320), (1192, 71570), (1360, 62729), (1490, 57256), (1684, 50660), (2105, 40528), (2384, 35785), (2533, 33680), (2980, 28628), (3368, 25330), (4210, 20264), (5066, 16840), (5960, 14314), (6736, 12665), (7157, 11920), (8420, 10132)]