219988400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:319

約数の個数: 120

約数和(自身を含む): 553905024

約数和(自身を除く): 333916624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 113, 124, 155, 157, 200, 226, 248, 310, 314, 400, 452, 496, 565, 620, 628, 775, 785, 904, 1130, 1240, 1256, 1550, 1570, 1808, 2260, 2480, 2512, 2825, 3100, 3140, 3503, 3925, 4520, 4867, 5650, 6200, 6280, 7006, 7850, 9040, 9734, 11300, 12400, 12560, 14012, 15700, 17515, 17741, 19468, 22600, 24335, 28024, 31400, 35030, 35482, 38936, 45200, 48670, 56048, 62800, 70060, 70964, 77872, 87575, 88705, 97340, 121675, 140120, 141928, 175150, 177410, 194680, 243350, 280240, 283856, 350300, 354820, 389360, 443525, 486700, 549971, 700600, 709640, 887050, 973400, 1099942, 1401200, 1419280, 1774100, 1946800, 2199884, 2749855, 3548200, 4399768, 5499710, 7096400, 8799536, 10999420, 13749275, 21998840, 27498550, 43997680, 54997100, 109994200, 219988400]

約数ペア:

[(1, 219988400), (2, 109994200), (4, 54997100), (5, 43997680), (8, 27498550), (10, 21998840), (16, 13749275), (20, 10999420), (25, 8799536), (31, 7096400), (40, 5499710), (50, 4399768), (62, 3548200), (80, 2749855), (100, 2199884), (113, 1946800), (124, 1774100), (155, 1419280), (157, 1401200), (200, 1099942), (226, 973400), (248, 887050), (310, 709640), (314, 700600), (400, 549971), (452, 486700), (496, 443525), (565, 389360), (620, 354820), (628, 350300), (775, 283856), (785, 280240), (904, 243350), (1130, 194680), (1240, 177410), (1256, 175150), (1550, 141928), (1570, 140120), (1808, 121675), (2260, 97340), (2480, 88705), (2512, 87575), (2825, 77872), (3100, 70964), (3140, 70060), (3503, 62800), (3925, 56048), (4520, 48670), (4867, 45200), (5650, 38936), (6200, 35482), (6280, 35030), (7006, 31400), (7850, 28024), (9040, 24335), (9734, 22600), (11300, 19468), (12400, 17741), (12560, 17515), (14012, 15700)]