20696820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 62270208

約数和(自身を除く): 41573388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 103, 170, 197, 204, 206, 255, 309, 340, 394, 412, 510, 515, 591, 618, 788, 985, 1020, 1030, 1182, 1236, 1545, 1751, 1970, 2060, 2364, 2955, 3090, 3349, 3502, 3940, 5253, 5910, 6180, 6698, 7004, 8755, 10047, 10506, 11820, 13396, 16745, 17510, 20094, 20291, 21012, 26265, 33490, 35020, 40188, 40582, 50235, 52530, 60873, 66980, 81164, 100470, 101455, 105060, 121746, 200940, 202910, 243492, 304365, 344947, 405820, 608730, 689894, 1034841, 1217460, 1379788, 1724735, 2069682, 3449470, 4139364, 5174205, 6898940, 10348410, 20696820]

約数ペア:

[(1, 20696820), (2, 10348410), (3, 6898940), (4, 5174205), (5, 4139364), (6, 3449470), (10, 2069682), (12, 1724735), (15, 1379788), (17, 1217460), (20, 1034841), (30, 689894), (34, 608730), (51, 405820), (60, 344947), (68, 304365), (85, 243492), (102, 202910), (103, 200940), (170, 121746), (197, 105060), (204, 101455), (206, 100470), (255, 81164), (309, 66980), (340, 60873), (394, 52530), (412, 50235), (510, 40582), (515, 40188), (591, 35020), (618, 33490), (788, 26265), (985, 21012), (1020, 20291), (1030, 20094), (1182, 17510), (1236, 16745), (1545, 13396), (1751, 11820), (1970, 10506), (2060, 10047), (2364, 8755), (2955, 7004), (3090, 6698), (3349, 6180), (3502, 5910), (3940, 5253)]