20097350

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:670

約数の個数: 72

約数和(自身を含む): 46903248

約数和(自身を除く): 26805898

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 49, 50, 65, 70, 91, 98, 130, 175, 182, 245, 325, 350, 455, 490, 631, 637, 650, 910, 1225, 1262, 1274, 2275, 2450, 3155, 3185, 4417, 4550, 6310, 6370, 8203, 8834, 15775, 15925, 16406, 22085, 30919, 31550, 31850, 41015, 44170, 57421, 61838, 82030, 110425, 114842, 154595, 205075, 220850, 287105, 309190, 401947, 410150, 574210, 772975, 803894, 1435525, 1545950, 2009735, 2871050, 4019470, 10048675, 20097350]

約数ペア:

[(1, 20097350), (2, 10048675), (5, 4019470), (7, 2871050), (10, 2009735), (13, 1545950), (14, 1435525), (25, 803894), (26, 772975), (35, 574210), (49, 410150), (50, 401947), (65, 309190), (70, 287105), (91, 220850), (98, 205075), (130, 154595), (175, 114842), (182, 110425), (245, 82030), (325, 61838), (350, 57421), (455, 44170), (490, 41015), (631, 31850), (637, 31550), (650, 30919), (910, 22085), (1225, 16406), (1262, 15925), (1274, 15775), (2275, 8834), (2450, 8203), (3155, 6370), (3185, 6310), (4417, 4550)]