20703550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{397}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 44416800

約数和(自身を除く): 23713250

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 149, 175, 298, 350, 397, 745, 794, 1043, 1490, 1985, 2086, 2779, 3725, 3970, 5215, 5558, 7450, 9925, 10430, 13895, 19850, 26075, 27790, 52150, 59153, 69475, 118306, 138950, 295765, 414071, 591530, 828142, 1478825, 2070355, 2957650, 4140710, 10351775, 20703550]

約数ペア:

[(1, 20703550), (2, 10351775), (5, 4140710), (7, 2957650), (10, 2070355), (14, 1478825), (25, 828142), (35, 591530), (50, 414071), (70, 295765), (149, 138950), (175, 118306), (298, 69475), (350, 59153), (397, 52150), (745, 27790), (794, 26075), (1043, 19850), (1490, 13895), (1985, 10430), (2086, 9925), (2779, 7450), (3725, 5558), (3970, 5215)]