21014560

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:698

約数の個数: 96

約数和(自身を含む): 58786560

約数和(自身を除く): 37772000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 160, 203, 224, 232, 280, 290, 406, 464, 560, 580, 647, 812, 928, 1015, 1120, 1160, 1294, 1624, 2030, 2320, 2588, 3235, 3248, 4060, 4529, 4640, 5176, 6470, 6496, 8120, 9058, 10352, 12940, 16240, 18116, 18763, 20704, 22645, 25880, 32480, 36232, 37526, 45290, 51760, 72464, 75052, 90580, 93815, 103520, 131341, 144928, 150104, 181160, 187630, 262682, 300208, 362320, 375260, 525364, 600416, 656705, 724640, 750520, 1050728, 1313410, 1501040, 2101456, 2626820, 3002080, 4202912, 5253640, 10507280, 21014560]

約数ペア:

[(1, 21014560), (2, 10507280), (4, 5253640), (5, 4202912), (7, 3002080), (8, 2626820), (10, 2101456), (14, 1501040), (16, 1313410), (20, 1050728), (28, 750520), (29, 724640), (32, 656705), (35, 600416), (40, 525364), (56, 375260), (58, 362320), (70, 300208), (80, 262682), (112, 187630), (116, 181160), (140, 150104), (145, 144928), (160, 131341), (203, 103520), (224, 93815), (232, 90580), (280, 75052), (290, 72464), (406, 51760), (464, 45290), (560, 37526), (580, 36232), (647, 32480), (812, 25880), (928, 22645), (1015, 20704), (1120, 18763), (1160, 18116), (1294, 16240), (1624, 12940), (2030, 10352), (2320, 9058), (2588, 8120), (3235, 6496), (3248, 6470), (4060, 5176), (4529, 4640)]