3997220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 9024960

約数和(自身を除く): 5027740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 157, 190, 268, 314, 335, 380, 628, 670, 785, 1273, 1340, 1570, 2546, 2983, 3140, 5092, 5966, 6365, 10519, 11932, 12730, 14915, 21038, 25460, 29830, 42076, 52595, 59660, 105190, 199861, 210380, 399722, 799444, 999305, 1998610, 3997220]

約数ペア:

[(1, 3997220), (2, 1998610), (4, 999305), (5, 799444), (10, 399722), (19, 210380), (20, 199861), (38, 105190), (67, 59660), (76, 52595), (95, 42076), (134, 29830), (157, 25460), (190, 21038), (268, 14915), (314, 12730), (335, 11932), (380, 10519), (628, 6365), (670, 5966), (785, 5092), (1273, 3140), (1340, 2983), (1570, 2546)]