51358240

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7829}}^1$

素因数の和:7885

約数の個数: 48

約数和(自身を含む): 124309080

約数和(自身を除く): 72950840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 7829, 15658, 31316, 39145, 62632, 78290, 125264, 156580, 250528, 313160, 320989, 626320, 641978, 1252640, 1283956, 1604945, 2567912, 3209890, 5135824, 6419780, 10271648, 12839560, 25679120, 51358240]

約数ペア:

[(1, 51358240), (2, 25679120), (4, 12839560), (5, 10271648), (8, 6419780), (10, 5135824), (16, 3209890), (20, 2567912), (32, 1604945), (40, 1283956), (41, 1252640), (80, 641978), (82, 626320), (160, 320989), (164, 313160), (205, 250528), (328, 156580), (410, 125264), (656, 78290), (820, 62632), (1312, 39145), (1640, 31316), (3280, 15658), (6560, 7829)]