19465520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:258

約数の個数: 80

約数和(自身を含む): 47996928

約数和(自身を除く): 28531408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 47, 62, 80, 94, 124, 155, 167, 188, 235, 248, 310, 334, 376, 470, 496, 620, 668, 752, 835, 940, 1240, 1336, 1457, 1670, 1880, 2480, 2672, 2914, 3340, 3760, 5177, 5828, 6680, 7285, 7849, 10354, 11656, 13360, 14570, 15698, 20708, 23312, 25885, 29140, 31396, 39245, 41416, 51770, 58280, 62792, 78490, 82832, 103540, 116560, 125584, 156980, 207080, 243319, 313960, 414160, 486638, 627920, 973276, 1216595, 1946552, 2433190, 3893104, 4866380, 9732760, 19465520]

約数ペア:

[(1, 19465520), (2, 9732760), (4, 4866380), (5, 3893104), (8, 2433190), (10, 1946552), (16, 1216595), (20, 973276), (31, 627920), (40, 486638), (47, 414160), (62, 313960), (80, 243319), (94, 207080), (124, 156980), (155, 125584), (167, 116560), (188, 103540), (235, 82832), (248, 78490), (310, 62792), (334, 58280), (376, 51770), (470, 41416), (496, 39245), (620, 31396), (668, 29140), (752, 25885), (835, 23312), (940, 20708), (1240, 15698), (1336, 14570), (1457, 13360), (1670, 11656), (1880, 10354), (2480, 7849), (2672, 7285), (2914, 6680), (3340, 5828), (3760, 5177)]