20411430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{263}}^1$

素因数の和:485

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 32810970

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 199, 263, 390, 398, 526, 597, 789, 995, 1194, 1315, 1578, 1990, 2587, 2630, 2985, 3419, 3945, 5174, 5970, 6838, 7761, 7890, 10257, 12935, 15522, 17095, 20514, 25870, 34190, 38805, 51285, 52337, 77610, 102570, 104674, 157011, 261685, 314022, 523370, 680381, 785055, 1360762, 1570110, 2041143, 3401905, 4082286, 6803810, 10205715, 20411430]

約数ペア:

[(1, 20411430), (2, 10205715), (3, 6803810), (5, 4082286), (6, 3401905), (10, 2041143), (13, 1570110), (15, 1360762), (26, 785055), (30, 680381), (39, 523370), (65, 314022), (78, 261685), (130, 157011), (195, 104674), (199, 102570), (263, 77610), (390, 52337), (398, 51285), (526, 38805), (597, 34190), (789, 25870), (995, 20514), (1194, 17095), (1315, 15522), (1578, 12935), (1990, 10257), (2587, 7890), (2630, 7761), (2985, 6838), (3419, 5970), (3945, 5174)]