18850290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:547

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 29049870

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 47, 58, 87, 94, 141, 145, 174, 235, 282, 290, 435, 461, 470, 705, 870, 922, 1363, 1383, 1410, 2305, 2726, 2766, 4089, 4610, 6815, 6915, 8178, 13369, 13630, 13830, 20445, 21667, 26738, 40107, 40890, 43334, 65001, 66845, 80214, 108335, 130002, 133690, 200535, 216670, 325005, 401070, 628343, 650010, 1256686, 1885029, 3141715, 3770058, 6283430, 9425145, 18850290]

約数ペア:

[(1, 18850290), (2, 9425145), (3, 6283430), (5, 3770058), (6, 3141715), (10, 1885029), (15, 1256686), (29, 650010), (30, 628343), (47, 401070), (58, 325005), (87, 216670), (94, 200535), (141, 133690), (145, 130002), (174, 108335), (235, 80214), (282, 66845), (290, 65001), (435, 43334), (461, 40890), (470, 40107), (705, 26738), (870, 21667), (922, 20445), (1363, 13830), (1383, 13630), (1410, 13369), (2305, 8178), (2726, 6915), (2766, 6815), (4089, 4610)]