16813980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:225

約数の個数: 120

約数和(自身を含む): 53787888

約数和(自身を除く): 36973908

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 97, 107, 108, 135, 162, 180, 194, 214, 270, 291, 321, 324, 388, 405, 428, 485, 535, 540, 582, 642, 810, 873, 963, 970, 1070, 1164, 1284, 1455, 1605, 1620, 1746, 1926, 1940, 2140, 2619, 2889, 2910, 3210, 3492, 3852, 4365, 4815, 5238, 5778, 5820, 6420, 7857, 8667, 8730, 9630, 10379, 10476, 11556, 13095, 14445, 15714, 17334, 17460, 19260, 20758, 26190, 28890, 31137, 31428, 34668, 39285, 41516, 43335, 51895, 52380, 57780, 62274, 78570, 86670, 93411, 103790, 124548, 155685, 157140, 173340, 186822, 207580, 280233, 311370, 373644, 467055, 560466, 622740, 840699, 934110, 1120932, 1401165, 1681398, 1868220, 2802330, 3362796, 4203495, 5604660, 8406990, 16813980]

約数ペア:

[(1, 16813980), (2, 8406990), (3, 5604660), (4, 4203495), (5, 3362796), (6, 2802330), (9, 1868220), (10, 1681398), (12, 1401165), (15, 1120932), (18, 934110), (20, 840699), (27, 622740), (30, 560466), (36, 467055), (45, 373644), (54, 311370), (60, 280233), (81, 207580), (90, 186822), (97, 173340), (107, 157140), (108, 155685), (135, 124548), (162, 103790), (180, 93411), (194, 86670), (214, 78570), (270, 62274), (291, 57780), (321, 52380), (324, 51895), (388, 43335), (405, 41516), (428, 39285), (485, 34668), (535, 31428), (540, 31137), (582, 28890), (642, 26190), (810, 20758), (873, 19260), (963, 17460), (970, 17334), (1070, 15714), (1164, 14445), (1284, 13095), (1455, 11556), (1605, 10476), (1620, 10379), (1746, 9630), (1926, 8730), (1940, 8667), (2140, 7857), (2619, 6420), (2889, 5820), (2910, 5778), (3210, 5238), (3492, 4815), (3852, 4365)]