21368300

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 49080192

約数和(自身を除く): 27711892

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 61, 62, 100, 113, 122, 124, 155, 226, 244, 305, 310, 452, 565, 610, 620, 775, 1130, 1220, 1525, 1550, 1891, 2260, 2825, 3050, 3100, 3503, 3782, 5650, 6100, 6893, 7006, 7564, 9455, 11300, 13786, 14012, 17515, 18910, 27572, 34465, 35030, 37820, 47275, 68930, 70060, 87575, 94550, 137860, 172325, 175150, 189100, 213683, 344650, 350300, 427366, 689300, 854732, 1068415, 2136830, 4273660, 5342075, 10684150, 21368300]

約数ペア:

[(1, 21368300), (2, 10684150), (4, 5342075), (5, 4273660), (10, 2136830), (20, 1068415), (25, 854732), (31, 689300), (50, 427366), (61, 350300), (62, 344650), (100, 213683), (113, 189100), (122, 175150), (124, 172325), (155, 137860), (226, 94550), (244, 87575), (305, 70060), (310, 68930), (452, 47275), (565, 37820), (610, 35030), (620, 34465), (775, 27572), (1130, 18910), (1220, 17515), (1525, 14012), (1550, 13786), (1891, 11300), (2260, 9455), (2825, 7564), (3050, 7006), (3100, 6893), (3503, 6100), (3782, 5650)]