439976800

素因数分解:

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

素因数の和:321

約数の個数: 144

約数和(自身を含む): 1125677952

約数和(自身を除く): 685701152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 113, 124, 155, 157, 160, 200, 226, 248, 310, 314, 400, 452, 496, 565, 620, 628, 775, 785, 800, 904, 992, 1130, 1240, 1256, 1550, 1570, 1808, 2260, 2480, 2512, 2825, 3100, 3140, 3503, 3616, 3925, 4520, 4867, 4960, 5024, 5650, 6200, 6280, 7006, 7850, 9040, 9734, 11300, 12400, 12560, 14012, 15700, 17515, 17741, 18080, 19468, 22600, 24335, 24800, 25120, 28024, 31400, 35030, 35482, 38936, 45200, 48670, 56048, 62800, 70060, 70964, 77872, 87575, 88705, 90400, 97340, 112096, 121675, 125600, 140120, 141928, 155744, 175150, 177410, 194680, 243350, 280240, 283856, 350300, 354820, 389360, 443525, 486700, 549971, 560480, 567712, 700600, 709640, 778720, 887050, 973400, 1099942, 1401200, 1419280, 1774100, 1946800, 2199884, 2749855, 2802400, 2838560, 3548200, 3893600, 4399768, 5499710, 7096400, 8799536, 10999420, 13749275, 14192800, 17599072, 21998840, 27498550, 43997680, 54997100, 87995360, 109994200, 219988400, 439976800]

約数ペア:

[(1, 439976800), (2, 219988400), (4, 109994200), (5, 87995360), (8, 54997100), (10, 43997680), (16, 27498550), (20, 21998840), (25, 17599072), (31, 14192800), (32, 13749275), (40, 10999420), (50, 8799536), (62, 7096400), (80, 5499710), (100, 4399768), (113, 3893600), (124, 3548200), (155, 2838560), (157, 2802400), (160, 2749855), (200, 2199884), (226, 1946800), (248, 1774100), (310, 1419280), (314, 1401200), (400, 1099942), (452, 973400), (496, 887050), (565, 778720), (620, 709640), (628, 700600), (775, 567712), (785, 560480), (800, 549971), (904, 486700), (992, 443525), (1130, 389360), (1240, 354820), (1256, 350300), (1550, 283856), (1570, 280240), (1808, 243350), (2260, 194680), (2480, 177410), (2512, 175150), (2825, 155744), (3100, 141928), (3140, 140120), (3503, 125600), (3616, 121675), (3925, 112096), (4520, 97340), (4867, 90400), (4960, 88705), (5024, 87575), (5650, 77872), (6200, 70964), (6280, 70060), (7006, 62800), (7850, 56048), (9040, 48670), (9734, 45200), (11300, 38936), (12400, 35482), (12560, 35030), (14012, 31400), (15700, 28024), (17515, 25120), (17741, 24800), (18080, 24335), (19468, 22600)]