21232080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{797}}^1$

素因数の和:853

約数の個数: 120

約数和(自身を含む): 73323432

約数和(自身を除く): 52091352

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 111, 120, 144, 148, 180, 185, 222, 240, 296, 333, 360, 370, 444, 555, 592, 666, 720, 740, 797, 888, 1110, 1332, 1480, 1594, 1665, 1776, 2220, 2391, 2664, 2960, 3188, 3330, 3985, 4440, 4782, 5328, 6376, 6660, 7173, 7970, 8880, 9564, 11955, 12752, 13320, 14346, 15940, 19128, 23910, 26640, 28692, 29489, 31880, 35865, 38256, 47820, 57384, 58978, 63760, 71730, 88467, 95640, 114768, 117956, 143460, 147445, 176934, 191280, 235912, 265401, 286920, 294890, 353868, 442335, 471824, 530802, 573840, 589780, 707736, 884670, 1061604, 1179560, 1327005, 1415472, 1769340, 2123208, 2359120, 2654010, 3538680, 4246416, 5308020, 7077360, 10616040, 21232080]

約数ペア:

[(1, 21232080), (2, 10616040), (3, 7077360), (4, 5308020), (5, 4246416), (6, 3538680), (8, 2654010), (9, 2359120), (10, 2123208), (12, 1769340), (15, 1415472), (16, 1327005), (18, 1179560), (20, 1061604), (24, 884670), (30, 707736), (36, 589780), (37, 573840), (40, 530802), (45, 471824), (48, 442335), (60, 353868), (72, 294890), (74, 286920), (80, 265401), (90, 235912), (111, 191280), (120, 176934), (144, 147445), (148, 143460), (180, 117956), (185, 114768), (222, 95640), (240, 88467), (296, 71730), (333, 63760), (360, 58978), (370, 57384), (444, 47820), (555, 38256), (592, 35865), (666, 31880), (720, 29489), (740, 28692), (797, 26640), (888, 23910), (1110, 19128), (1332, 15940), (1480, 14346), (1594, 13320), (1665, 12752), (1776, 11955), (2220, 9564), (2391, 8880), (2664, 7970), (2960, 7173), (3188, 6660), (3330, 6376), (3985, 5328), (4440, 4782)]