20073950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 40778640

約数和(自身を除く): 20704690

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 89, 130, 178, 325, 347, 445, 650, 694, 890, 1157, 1735, 2225, 2314, 3470, 4450, 4511, 5785, 8675, 9022, 11570, 17350, 22555, 28925, 30883, 45110, 57850, 61766, 112775, 154415, 225550, 308830, 401479, 772075, 802958, 1544150, 2007395, 4014790, 10036975, 20073950]

約数ペア:

[(1, 20073950), (2, 10036975), (5, 4014790), (10, 2007395), (13, 1544150), (25, 802958), (26, 772075), (50, 401479), (65, 308830), (89, 225550), (130, 154415), (178, 112775), (325, 61766), (347, 57850), (445, 45110), (650, 30883), (694, 28925), (890, 22555), (1157, 17350), (1735, 11570), (2225, 9022), (2314, 8675), (3470, 5785), (4450, 4511)]