20191617584

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{521}}^1\times {\mathrm{30661}}^1$

素因数の和:31269

約数の個数: 40

約数和(自身を含む): 39693798720

約数和(自身を除く): 19502181136

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 521, 632, 1042, 1264, 2084, 4168, 8336, 30661, 41159, 61322, 82318, 122644, 164636, 245288, 329272, 490576, 658544, 2422219, 4844438, 9688876, 15974381, 19377752, 31948762, 38755504, 63897524, 127795048, 255590096, 1261976099, 2523952198, 5047904396, 10095808792, 20191617584]

約数ペア:

[(1, 20191617584), (2, 10095808792), (4, 5047904396), (8, 2523952198), (16, 1261976099), (79, 255590096), (158, 127795048), (316, 63897524), (521, 38755504), (632, 31948762), (1042, 19377752), (1264, 15974381), (2084, 9688876), (4168, 4844438), (8336, 2422219), (30661, 658544), (41159, 490576), (61322, 329272), (82318, 245288), (122644, 164636)]