79457420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{911}}^1$

素因数の和:1023

約数の個数: 72

約数和(自身を含む): 196499520

約数和(自身を除く): 117042100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 890, 911, 980, 1246, 1780, 1822, 2492, 3115, 3644, 4361, 4555, 6230, 6377, 8722, 9110, 12460, 12754, 17444, 18220, 21805, 25508, 31885, 43610, 44639, 63770, 81079, 87220, 89278, 127540, 162158, 178556, 223195, 324316, 405395, 446390, 567553, 810790, 892780, 1135106, 1621580, 2270212, 2837765, 3972871, 5675530, 7945742, 11351060, 15891484, 19864355, 39728710, 79457420]

約数ペア:

[(1, 79457420), (2, 39728710), (4, 19864355), (5, 15891484), (7, 11351060), (10, 7945742), (14, 5675530), (20, 3972871), (28, 2837765), (35, 2270212), (49, 1621580), (70, 1135106), (89, 892780), (98, 810790), (140, 567553), (178, 446390), (196, 405395), (245, 324316), (356, 223195), (445, 178556), (490, 162158), (623, 127540), (890, 89278), (911, 87220), (980, 81079), (1246, 63770), (1780, 44639), (1822, 43610), (2492, 31885), (3115, 25508), (3644, 21805), (4361, 18220), (4555, 17444), (6230, 12754), (6377, 12460), (8722, 9110)]