2859880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 6998400

約数和(自身を除く): 4138520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 71, 76, 95, 106, 142, 152, 190, 212, 265, 284, 355, 380, 424, 530, 568, 710, 760, 1007, 1060, 1349, 1420, 2014, 2120, 2698, 2840, 3763, 4028, 5035, 5396, 6745, 7526, 8056, 10070, 10792, 13490, 15052, 18815, 20140, 26980, 30104, 37630, 40280, 53960, 71497, 75260, 142994, 150520, 285988, 357485, 571976, 714970, 1429940, 2859880]

約数ペア:

[(1, 2859880), (2, 1429940), (4, 714970), (5, 571976), (8, 357485), (10, 285988), (19, 150520), (20, 142994), (38, 75260), (40, 71497), (53, 53960), (71, 40280), (76, 37630), (95, 30104), (106, 26980), (142, 20140), (152, 18815), (190, 15052), (212, 13490), (265, 10792), (284, 10070), (355, 8056), (380, 7526), (424, 6745), (530, 5396), (568, 5035), (710, 4028), (760, 3763), (1007, 2840), (1060, 2698), (1349, 2120), (1420, 2014)]