18689188

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 41368320

約数和(自身を除く): 22679132

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 71, 79, 98, 119, 142, 158, 196, 238, 284, 316, 476, 497, 553, 833, 994, 1106, 1207, 1343, 1666, 1988, 2212, 2414, 2686, 3332, 3479, 3871, 4828, 5372, 5609, 6958, 7742, 8449, 9401, 11218, 13916, 15484, 16898, 18802, 22436, 33796, 37604, 39263, 59143, 65807, 78526, 95353, 118286, 131614, 157052, 190706, 236572, 263228, 274841, 381412, 549682, 667471, 1099364, 1334942, 2669884, 4672297, 9344594, 18689188]

約数ペア:

[(1, 18689188), (2, 9344594), (4, 4672297), (7, 2669884), (14, 1334942), (17, 1099364), (28, 667471), (34, 549682), (49, 381412), (68, 274841), (71, 263228), (79, 236572), (98, 190706), (119, 157052), (142, 131614), (158, 118286), (196, 95353), (238, 78526), (284, 65807), (316, 59143), (476, 39263), (497, 37604), (553, 33796), (833, 22436), (994, 18802), (1106, 16898), (1207, 15484), (1343, 13916), (1666, 11218), (1988, 9401), (2212, 8449), (2414, 7742), (2686, 6958), (3332, 5609), (3479, 5372), (3871, 4828)]