251461520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{227}}^2$

素因数の和:528

約数の個数: 60

約数和(自身を含む): 596861724

約数和(自身を除く): 345400204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 227, 244, 305, 454, 488, 610, 908, 976, 1135, 1220, 1816, 2270, 2440, 3632, 4540, 4880, 9080, 13847, 18160, 27694, 51529, 55388, 69235, 103058, 110776, 138470, 206116, 221552, 257645, 276940, 412232, 515290, 553880, 824464, 1030580, 1107760, 2061160, 3143269, 4122320, 6286538, 12573076, 15716345, 25146152, 31432690, 50292304, 62865380, 125730760, 251461520]

約数ペア:

[(1, 251461520), (2, 125730760), (4, 62865380), (5, 50292304), (8, 31432690), (10, 25146152), (16, 15716345), (20, 12573076), (40, 6286538), (61, 4122320), (80, 3143269), (122, 2061160), (227, 1107760), (244, 1030580), (305, 824464), (454, 553880), (488, 515290), (610, 412232), (908, 276940), (976, 257645), (1135, 221552), (1220, 206116), (1816, 138470), (2270, 110776), (2440, 103058), (3632, 69235), (4540, 55388), (4880, 51529), (9080, 27694), (13847, 18160)]