81380910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2939}}^1$

素因数の和:3033

約数の個数: 64

約数和(自身を含む): 213373440

約数和(自身を除く): 131992530

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 71, 78, 130, 142, 195, 213, 355, 390, 426, 710, 923, 1065, 1846, 2130, 2769, 2939, 4615, 5538, 5878, 8817, 9230, 13845, 14695, 17634, 27690, 29390, 38207, 44085, 76414, 88170, 114621, 191035, 208669, 229242, 382070, 417338, 573105, 626007, 1043345, 1146210, 1252014, 2086690, 2712697, 3130035, 5425394, 6260070, 8138091, 13563485, 16276182, 27126970, 40690455, 81380910]

約数ペア:

[(1, 81380910), (2, 40690455), (3, 27126970), (5, 16276182), (6, 13563485), (10, 8138091), (13, 6260070), (15, 5425394), (26, 3130035), (30, 2712697), (39, 2086690), (65, 1252014), (71, 1146210), (78, 1043345), (130, 626007), (142, 573105), (195, 417338), (213, 382070), (355, 229242), (390, 208669), (426, 191035), (710, 114621), (923, 88170), (1065, 76414), (1846, 44085), (2130, 38207), (2769, 29390), (2939, 27690), (4615, 17634), (5538, 14695), (5878, 13845), (8817, 9230)]