18700850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{449}}^1$

素因数の和:492

約数の個数: 72

約数和(自身を含む): 42938100

約数和(自身を除く): 24237250

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 49, 50, 70, 85, 98, 119, 170, 175, 238, 245, 350, 425, 449, 490, 595, 833, 850, 898, 1190, 1225, 1666, 2245, 2450, 2975, 3143, 4165, 4490, 5950, 6286, 7633, 8330, 11225, 15266, 15715, 20825, 22001, 22450, 31430, 38165, 41650, 44002, 53431, 76330, 78575, 106862, 110005, 157150, 190825, 220010, 267155, 374017, 381650, 534310, 550025, 748034, 1100050, 1335775, 1870085, 2671550, 3740170, 9350425, 18700850]

約数ペア:

[(1, 18700850), (2, 9350425), (5, 3740170), (7, 2671550), (10, 1870085), (14, 1335775), (17, 1100050), (25, 748034), (34, 550025), (35, 534310), (49, 381650), (50, 374017), (70, 267155), (85, 220010), (98, 190825), (119, 157150), (170, 110005), (175, 106862), (238, 78575), (245, 76330), (350, 53431), (425, 44002), (449, 41650), (490, 38165), (595, 31430), (833, 22450), (850, 22001), (898, 20825), (1190, 15715), (1225, 15266), (1666, 11225), (2245, 8330), (2450, 7633), (2975, 6286), (3143, 5950), (4165, 4490)]