28423240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 68040000

約数和(自身を除く): 39616760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 149, 152, 190, 251, 298, 380, 502, 596, 745, 760, 1004, 1192, 1255, 1490, 2008, 2510, 2831, 2980, 4769, 5020, 5662, 5960, 9538, 10040, 11324, 14155, 19076, 22648, 23845, 28310, 37399, 38152, 47690, 56620, 74798, 95380, 113240, 149596, 186995, 190760, 299192, 373990, 710581, 747980, 1421162, 1495960, 2842324, 3552905, 5684648, 7105810, 14211620, 28423240]

約数ペア:

[(1, 28423240), (2, 14211620), (4, 7105810), (5, 5684648), (8, 3552905), (10, 2842324), (19, 1495960), (20, 1421162), (38, 747980), (40, 710581), (76, 373990), (95, 299192), (149, 190760), (152, 186995), (190, 149596), (251, 113240), (298, 95380), (380, 74798), (502, 56620), (596, 47690), (745, 38152), (760, 37399), (1004, 28310), (1192, 23845), (1255, 22648), (1490, 19076), (2008, 14155), (2510, 11324), (2831, 10040), (2980, 9538), (4769, 5960), (5020, 5662)]