20820060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:192

約数の個数: 144

約数和(自身を含む): 67931136

約数和(自身を除く): 47111076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 47, 60, 69, 90, 92, 94, 107, 115, 138, 141, 180, 188, 207, 214, 230, 235, 276, 282, 321, 345, 414, 423, 428, 460, 470, 535, 564, 642, 690, 705, 828, 846, 940, 963, 1035, 1070, 1081, 1284, 1380, 1410, 1605, 1692, 1926, 2070, 2115, 2140, 2162, 2461, 2820, 3210, 3243, 3852, 4140, 4230, 4324, 4815, 4922, 5029, 5405, 6420, 6486, 7383, 8460, 9630, 9729, 9844, 10058, 10810, 12305, 12972, 14766, 15087, 16215, 19260, 19458, 20116, 21620, 22149, 24610, 25145, 29532, 30174, 32430, 36915, 38916, 44298, 45261, 48645, 49220, 50290, 60348, 64860, 73830, 75435, 88596, 90522, 97290, 100580, 110745, 115667, 147660, 150870, 181044, 194580, 221490, 226305, 231334, 301740, 347001, 442980, 452610, 462668, 578335, 694002, 905220, 1041003, 1156670, 1388004, 1735005, 2082006, 2313340, 3470010, 4164012, 5205015, 6940020, 10410030, 20820060]

約数ペア:

[(1, 20820060), (2, 10410030), (3, 6940020), (4, 5205015), (5, 4164012), (6, 3470010), (9, 2313340), (10, 2082006), (12, 1735005), (15, 1388004), (18, 1156670), (20, 1041003), (23, 905220), (30, 694002), (36, 578335), (45, 462668), (46, 452610), (47, 442980), (60, 347001), (69, 301740), (90, 231334), (92, 226305), (94, 221490), (107, 194580), (115, 181044), (138, 150870), (141, 147660), (180, 115667), (188, 110745), (207, 100580), (214, 97290), (230, 90522), (235, 88596), (276, 75435), (282, 73830), (321, 64860), (345, 60348), (414, 50290), (423, 49220), (428, 48645), (460, 45261), (470, 44298), (535, 38916), (564, 36915), (642, 32430), (690, 30174), (705, 29532), (828, 25145), (846, 24610), (940, 22149), (963, 21620), (1035, 20116), (1070, 19458), (1081, 19260), (1284, 16215), (1380, 15087), (1410, 14766), (1605, 12972), (1692, 12305), (1926, 10810), (2070, 10058), (2115, 9844), (2140, 9729), (2162, 9630), (2461, 8460), (2820, 7383), (3210, 6486), (3243, 6420), (3852, 5405), (4140, 5029), (4230, 4922), (4324, 4815)]