201065620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{1031}}^1$

素因数の和:1253

約数の個数: 72

約数和(自身を含む): 494121600

約数和(自身を除く): 293055980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 199, 245, 398, 490, 796, 980, 995, 1031, 1393, 1990, 2062, 2786, 3980, 4124, 5155, 5572, 6965, 7217, 9751, 10310, 13930, 14434, 19502, 20620, 27860, 28868, 36085, 39004, 48755, 50519, 72170, 97510, 101038, 144340, 195020, 202076, 205169, 252595, 410338, 505190, 820676, 1010380, 1025845, 1436183, 2051690, 2872366, 4103380, 5744732, 7180915, 10053281, 14361830, 20106562, 28723660, 40213124, 50266405, 100532810, 201065620]

約数ペア:

[(1, 201065620), (2, 100532810), (4, 50266405), (5, 40213124), (7, 28723660), (10, 20106562), (14, 14361830), (20, 10053281), (28, 7180915), (35, 5744732), (49, 4103380), (70, 2872366), (98, 2051690), (140, 1436183), (196, 1025845), (199, 1010380), (245, 820676), (398, 505190), (490, 410338), (796, 252595), (980, 205169), (995, 202076), (1031, 195020), (1393, 144340), (1990, 101038), (2062, 97510), (2786, 72170), (3980, 50519), (4124, 48755), (5155, 39004), (5572, 36085), (6965, 28868), (7217, 27860), (9751, 20620), (10310, 19502), (13930, 14434)]