20898270

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 61430400

約数和(自身を除く): 40532130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 29, 30, 34, 45, 51, 54, 58, 85, 87, 90, 102, 135, 145, 153, 157, 170, 174, 255, 261, 270, 290, 306, 314, 435, 459, 471, 493, 510, 522, 765, 783, 785, 870, 918, 942, 986, 1305, 1413, 1479, 1530, 1566, 1570, 2295, 2355, 2465, 2610, 2669, 2826, 2958, 3915, 4239, 4437, 4553, 4590, 4710, 4930, 5338, 7065, 7395, 7830, 8007, 8478, 8874, 9106, 13311, 13345, 13659, 14130, 14790, 16014, 21195, 22185, 22765, 24021, 26622, 26690, 27318, 40035, 40977, 42390, 44370, 45530, 48042, 66555, 68295, 72063, 77401, 80070, 81954, 120105, 122931, 133110, 136590, 144126, 154802, 204885, 232203, 240210, 245862, 360315, 387005, 409770, 464406, 614655, 696609, 720630, 774010, 1161015, 1229310, 1393218, 2089827, 2322030, 3483045, 4179654, 6966090, 10449135, 20898270]

約数ペア:

[(1, 20898270), (2, 10449135), (3, 6966090), (5, 4179654), (6, 3483045), (9, 2322030), (10, 2089827), (15, 1393218), (17, 1229310), (18, 1161015), (27, 774010), (29, 720630), (30, 696609), (34, 614655), (45, 464406), (51, 409770), (54, 387005), (58, 360315), (85, 245862), (87, 240210), (90, 232203), (102, 204885), (135, 154802), (145, 144126), (153, 136590), (157, 133110), (170, 122931), (174, 120105), (255, 81954), (261, 80070), (270, 77401), (290, 72063), (306, 68295), (314, 66555), (435, 48042), (459, 45530), (471, 44370), (493, 42390), (510, 40977), (522, 40035), (765, 27318), (783, 26690), (785, 26622), (870, 24021), (918, 22765), (942, 22185), (986, 21195), (1305, 16014), (1413, 14790), (1479, 14130), (1530, 13659), (1566, 13345), (1570, 13311), (2295, 9106), (2355, 8874), (2465, 8478), (2610, 8007), (2669, 7830), (2826, 7395), (2958, 7065), (3915, 5338), (4239, 4930), (4437, 4710), (4553, 4590)]