81304600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31271}}^1$

素因数の和:31300

約数の個数: 48

約数和(自身を含む): 203580720

約数和(自身を除く): 122276120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 31271, 62542, 125084, 156355, 250168, 312710, 406523, 625420, 781775, 813046, 1250840, 1563550, 1626092, 2032615, 3127100, 3252184, 4065230, 6254200, 8130460, 10163075, 16260920, 20326150, 40652300, 81304600]

約数ペア:

[(1, 81304600), (2, 40652300), (4, 20326150), (5, 16260920), (8, 10163075), (10, 8130460), (13, 6254200), (20, 4065230), (25, 3252184), (26, 3127100), (40, 2032615), (50, 1626092), (52, 1563550), (65, 1250840), (100, 813046), (104, 781775), (130, 625420), (200, 406523), (260, 312710), (325, 250168), (520, 156355), (650, 125084), (1300, 62542), (2600, 31271)]