8205990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:473

約数の個数: 64

約数和(自身を含む): 21663936

約数和(自身を除く): 13457946

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 65, 78, 106, 130, 159, 195, 265, 318, 390, 397, 530, 689, 794, 795, 1191, 1378, 1590, 1985, 2067, 2382, 3445, 3970, 4134, 5161, 5955, 6890, 10322, 10335, 11910, 15483, 20670, 21041, 25805, 30966, 42082, 51610, 63123, 77415, 105205, 126246, 154830, 210410, 273533, 315615, 547066, 631230, 820599, 1367665, 1641198, 2735330, 4102995, 8205990]

約数ペア:

[(1, 8205990), (2, 4102995), (3, 2735330), (5, 1641198), (6, 1367665), (10, 820599), (13, 631230), (15, 547066), (26, 315615), (30, 273533), (39, 210410), (53, 154830), (65, 126246), (78, 105205), (106, 77415), (130, 63123), (159, 51610), (195, 42082), (265, 30966), (318, 25805), (390, 21041), (397, 20670), (530, 15483), (689, 11910), (794, 10335), (795, 10322), (1191, 6890), (1378, 5955), (1590, 5161), (1985, 4134), (2067, 3970), (2382, 3445)]