2989403780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{438329}}^1$

素因数の和:438380

約数の個数: 48

約数和(自身を含む): 7069386240

約数和(自身を除く): 4079982460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 438329, 876658, 1753316, 2191645, 4383290, 4821619, 8766580, 9643238, 13588199, 19286476, 24108095, 27176398, 48216190, 54352796, 67940995, 96432380, 135881990, 149470189, 271763980, 298940378, 597880756, 747350945, 1494701890, 2989403780]

約数ペア:

[(1, 2989403780), (2, 1494701890), (4, 747350945), (5, 597880756), (10, 298940378), (11, 271763980), (20, 149470189), (22, 135881990), (31, 96432380), (44, 67940995), (55, 54352796), (62, 48216190), (110, 27176398), (124, 24108095), (155, 19286476), (220, 13588199), (310, 9643238), (341, 8766580), (620, 4821619), (682, 4383290), (1364, 2191645), (1705, 1753316), (3410, 876658), (6820, 438329)]