39890560

素因数分解:

$2^7\times 5^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:573

約数の個数: 64

約数和(自身を含む): 96212520

約数和(自身を除く): 56321960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 314, 320, 397, 628, 640, 785, 794, 1256, 1570, 1588, 1985, 2512, 3140, 3176, 3970, 5024, 6280, 6352, 7940, 10048, 12560, 12704, 15880, 20096, 25120, 25408, 31760, 50240, 50816, 62329, 63520, 100480, 124658, 127040, 249316, 254080, 311645, 498632, 623290, 997264, 1246580, 1994528, 2493160, 3989056, 4986320, 7978112, 9972640, 19945280, 39890560]

約数ペア:

[(1, 39890560), (2, 19945280), (4, 9972640), (5, 7978112), (8, 4986320), (10, 3989056), (16, 2493160), (20, 1994528), (32, 1246580), (40, 997264), (64, 623290), (80, 498632), (128, 311645), (157, 254080), (160, 249316), (314, 127040), (320, 124658), (397, 100480), (628, 63520), (640, 62329), (785, 50816), (794, 50240), (1256, 31760), (1570, 25408), (1588, 25120), (1985, 20096), (2512, 15880), (3140, 12704), (3176, 12560), (3970, 10048), (5024, 7940), (6280, 6352)]