2129140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 5080320

約数和(自身を除く): 2951180

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 431, 494, 862, 988, 1235, 1724, 2155, 2470, 4310, 4940, 5603, 8189, 8620, 11206, 16378, 22412, 28015, 32756, 40945, 56030, 81890, 106457, 112060, 163780, 212914, 425828, 532285, 1064570, 2129140]

約数ペア:

[(1, 2129140), (2, 1064570), (4, 532285), (5, 425828), (10, 212914), (13, 163780), (19, 112060), (20, 106457), (26, 81890), (38, 56030), (52, 40945), (65, 32756), (76, 28015), (95, 22412), (130, 16378), (190, 11206), (247, 8620), (260, 8189), (380, 5603), (431, 4940), (494, 4310), (862, 2470), (988, 2155), (1235, 1724)]