201280720

素因数分解:

$2^4\times 5^1\times {\mathrm{653}}^1\times {\mathrm{3853}}^1$

素因数の和:4519

約数の個数: 40

約数和(自身を含む): 468815976

約数和(自身を除く): 267535256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 653, 1306, 2612, 3265, 3853, 5224, 6530, 7706, 10448, 13060, 15412, 19265, 26120, 30824, 38530, 52240, 61648, 77060, 154120, 308240, 2516009, 5032018, 10064036, 12580045, 20128072, 25160090, 40256144, 50320180, 100640360, 201280720]

約数ペア:

[(1, 201280720), (2, 100640360), (4, 50320180), (5, 40256144), (8, 25160090), (10, 20128072), (16, 12580045), (20, 10064036), (40, 5032018), (80, 2516009), (653, 308240), (1306, 154120), (2612, 77060), (3265, 61648), (3853, 52240), (5224, 38530), (6530, 30824), (7706, 26120), (10448, 19265), (13060, 15412)]