81899160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97499}}^1$

素因数の和:97520

約数の個数: 64

約数和(自身を含む): 280800000

約数和(自身を除く): 198900840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 97499, 194998, 292497, 389996, 487495, 584994, 682493, 779992, 974990, 1169988, 1364986, 1462485, 1949980, 2047479, 2339976, 2729972, 2924970, 3412465, 3899960, 4094958, 5459944, 5849940, 6824930, 8189916, 10237395, 11699880, 13649860, 16379832, 20474790, 27299720, 40949580, 81899160]

約数ペア:

[(1, 81899160), (2, 40949580), (3, 27299720), (4, 20474790), (5, 16379832), (6, 13649860), (7, 11699880), (8, 10237395), (10, 8189916), (12, 6824930), (14, 5849940), (15, 5459944), (20, 4094958), (21, 3899960), (24, 3412465), (28, 2924970), (30, 2729972), (35, 2339976), (40, 2047479), (42, 1949980), (56, 1462485), (60, 1364986), (70, 1169988), (84, 974990), (105, 779992), (120, 682493), (140, 584994), (168, 487495), (210, 389996), (280, 292497), (420, 194998), (840, 97499)]