19972290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{617}}^1$

素因数の和:723

約数の個数: 64

約数和(自身を含む): 52327296

約数和(自身を除く): 32355006

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 83, 130, 166, 195, 249, 390, 415, 498, 617, 830, 1079, 1234, 1245, 1851, 2158, 2490, 3085, 3237, 3702, 5395, 6170, 6474, 8021, 9255, 10790, 16042, 16185, 18510, 24063, 32370, 40105, 48126, 51211, 80210, 102422, 120315, 153633, 240630, 256055, 307266, 512110, 665743, 768165, 1331486, 1536330, 1997229, 3328715, 3994458, 6657430, 9986145, 19972290]

約数ペア:

[(1, 19972290), (2, 9986145), (3, 6657430), (5, 3994458), (6, 3328715), (10, 1997229), (13, 1536330), (15, 1331486), (26, 768165), (30, 665743), (39, 512110), (65, 307266), (78, 256055), (83, 240630), (130, 153633), (166, 120315), (195, 102422), (249, 80210), (390, 51211), (415, 48126), (498, 40105), (617, 32370), (830, 24063), (1079, 18510), (1234, 16185), (1245, 16042), (1851, 10790), (2158, 9255), (2490, 8021), (3085, 6474), (3237, 6170), (3702, 5395)]