619760

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:201

約数の個数: 40

約数和(自身を含む): 1476096

約数和(自身を除く): 856336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 127, 244, 254, 305, 488, 508, 610, 635, 976, 1016, 1220, 1270, 2032, 2440, 2540, 4880, 5080, 7747, 10160, 15494, 30988, 38735, 61976, 77470, 123952, 154940, 309880, 619760]

約数ペア:

[(1, 619760), (2, 309880), (4, 154940), (5, 123952), (8, 77470), (10, 61976), (16, 38735), (20, 30988), (40, 15494), (61, 10160), (80, 7747), (122, 5080), (127, 4880), (244, 2540), (254, 2440), (305, 2032), (488, 1270), (508, 1220), (610, 1016), (635, 976)]