51351920

素因数分解:

$2^4\times 5^1\times {\mathrm{653}}^1\times {\mathrm{983}}^1$

素因数の和:1649

約数の個数: 40

約数和(自身を含む): 119697696

約数和(自身を除く): 68345776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 653, 983, 1306, 1966, 2612, 3265, 3932, 4915, 5224, 6530, 7864, 9830, 10448, 13060, 15728, 19660, 26120, 39320, 52240, 78640, 641899, 1283798, 2567596, 3209495, 5135192, 6418990, 10270384, 12837980, 25675960, 51351920]

約数ペア:

[(1, 51351920), (2, 25675960), (4, 12837980), (5, 10270384), (8, 6418990), (10, 5135192), (16, 3209495), (20, 2567596), (40, 1283798), (80, 641899), (653, 78640), (983, 52240), (1306, 39320), (1966, 26120), (2612, 19660), (3265, 15728), (3932, 13060), (4915, 10448), (5224, 9830), (6530, 7864)]