21611280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1699}}^1$

素因数の和:1768

約数の個数: 80

約数和(自身を含む): 68299200

約数和(自身を除く): 46687920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 212, 240, 265, 318, 424, 530, 636, 795, 848, 1060, 1272, 1590, 1699, 2120, 2544, 3180, 3398, 4240, 5097, 6360, 6796, 8495, 10194, 12720, 13592, 16990, 20388, 25485, 27184, 33980, 40776, 50970, 67960, 81552, 90047, 101940, 135920, 180094, 203880, 270141, 360188, 407760, 450235, 540282, 720376, 900470, 1080564, 1350705, 1440752, 1800940, 2161128, 2701410, 3601880, 4322256, 5402820, 7203760, 10805640, 21611280]

約数ペア:

[(1, 21611280), (2, 10805640), (3, 7203760), (4, 5402820), (5, 4322256), (6, 3601880), (8, 2701410), (10, 2161128), (12, 1800940), (15, 1440752), (16, 1350705), (20, 1080564), (24, 900470), (30, 720376), (40, 540282), (48, 450235), (53, 407760), (60, 360188), (80, 270141), (106, 203880), (120, 180094), (159, 135920), (212, 101940), (240, 90047), (265, 81552), (318, 67960), (424, 50970), (530, 40776), (636, 33980), (795, 27184), (848, 25485), (1060, 20388), (1272, 16990), (1590, 13592), (1699, 12720), (2120, 10194), (2544, 8495), (3180, 6796), (3398, 6360), (4240, 5097)]