18905190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1951}}^1$

素因数の和:1997

約数の個数: 64

約数和(自身を含む): 50595840

約数和(自身を除く): 31690650

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 19, 30, 34, 38, 51, 57, 85, 95, 102, 114, 170, 190, 255, 285, 323, 510, 570, 646, 969, 1615, 1938, 1951, 3230, 3902, 4845, 5853, 9690, 9755, 11706, 19510, 29265, 33167, 37069, 58530, 66334, 74138, 99501, 111207, 165835, 185345, 199002, 222414, 331670, 370690, 497505, 556035, 630173, 995010, 1112070, 1260346, 1890519, 3150865, 3781038, 6301730, 9452595, 18905190]

約数ペア:

[(1, 18905190), (2, 9452595), (3, 6301730), (5, 3781038), (6, 3150865), (10, 1890519), (15, 1260346), (17, 1112070), (19, 995010), (30, 630173), (34, 556035), (38, 497505), (51, 370690), (57, 331670), (85, 222414), (95, 199002), (102, 185345), (114, 165835), (170, 111207), (190, 99501), (255, 74138), (285, 66334), (323, 58530), (510, 37069), (570, 33167), (646, 29265), (969, 19510), (1615, 11706), (1938, 9755), (1951, 9690), (3230, 5853), (3902, 4845)]