20490696590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2579}}^1\times {\mathrm{8731}}^1$

素因数の和:11337

約数の個数: 64

約数和(自身を含む): 45417576960

約数和(自身を除く): 24926880370

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 2579, 5158, 8731, 12895, 17462, 18053, 25790, 33527, 36106, 43655, 61117, 67054, 87310, 90265, 113503, 122234, 167635, 180530, 227006, 234689, 305585, 335270, 469378, 567515, 611170, 794521, 1135030, 1173445, 1589042, 2346890, 3972605, 7945210, 22517249, 45034498, 112586245, 157620743, 225172490, 292724237, 315241486, 585448474, 788103715, 1463621185, 1576207430, 2049069659, 2927242370, 4098139318, 10245348295, 20490696590]

約数ペア:

[(1, 20490696590), (2, 10245348295), (5, 4098139318), (7, 2927242370), (10, 2049069659), (13, 1576207430), (14, 1463621185), (26, 788103715), (35, 585448474), (65, 315241486), (70, 292724237), (91, 225172490), (130, 157620743), (182, 112586245), (455, 45034498), (910, 22517249), (2579, 7945210), (5158, 3972605), (8731, 2346890), (12895, 1589042), (17462, 1173445), (18053, 1135030), (25790, 794521), (33527, 611170), (36106, 567515), (43655, 469378), (61117, 335270), (67054, 305585), (87310, 234689), (90265, 227006), (113503, 180530), (122234, 167635)]