20397492052

素因数分解:

$2^2\times 7^2\times {\mathrm{263}}^1\times {\mathrm{269}}^1\times {\mathrm{1471}}^1$

素因数の和:2021

約数の個数: 72

約数和(自身を含む): 41864739840

約数和(自身を除く): 21467247788

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 263, 269, 526, 538, 1052, 1076, 1471, 1841, 1883, 2942, 3682, 3766, 5884, 7364, 7532, 10297, 12887, 13181, 20594, 25774, 26362, 41188, 51548, 52724, 70747, 72079, 141494, 144158, 282988, 288316, 386873, 395699, 495229, 773746, 791398, 990458, 1547492, 1582796, 1980916, 2708111, 2769893, 3466603, 5416222, 5539786, 6933206, 10832444, 11079572, 13866412, 18956777, 19389251, 37913554, 38778502, 75827108, 77557004, 104068837, 208137674, 416275348, 728481859, 1456963718, 2913927436, 5099373013, 10198746026, 20397492052]

約数ペア:

[(1, 20397492052), (2, 10198746026), (4, 5099373013), (7, 2913927436), (14, 1456963718), (28, 728481859), (49, 416275348), (98, 208137674), (196, 104068837), (263, 77557004), (269, 75827108), (526, 38778502), (538, 37913554), (1052, 19389251), (1076, 18956777), (1471, 13866412), (1841, 11079572), (1883, 10832444), (2942, 6933206), (3682, 5539786), (3766, 5416222), (5884, 3466603), (7364, 2769893), (7532, 2708111), (10297, 1980916), (12887, 1582796), (13181, 1547492), (20594, 990458), (25774, 791398), (26362, 773746), (41188, 495229), (51548, 395699), (52724, 386873), (70747, 288316), (72079, 282988), (141494, 144158)]