20115668895

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{4349}}^1$

素因数の和:4438

約数の個数: 128

約数和(自身を含む): 40089600000

約数和(自身を除く): 19973931105

約数列:

[1, 3, 5, 7, 15, 21, 29, 31, 35, 49, 87, 93, 105, 145, 147, 155, 203, 217, 245, 343, 435, 465, 609, 651, 735, 899, 1015, 1029, 1085, 1421, 1519, 1715, 2697, 3045, 3255, 4263, 4349, 4495, 4557, 5145, 6293, 7105, 7595, 9947, 10633, 13047, 13485, 18879, 21315, 21745, 22785, 29841, 30443, 31465, 31899, 44051, 49735, 53165, 65235, 91329, 94395, 126121, 132153, 134819, 149205, 152215, 159495, 213101, 220255, 308357, 378363, 404457, 456645, 630605, 639303, 660765, 674095, 882847, 925071, 943733, 1065505, 1491707, 1541785, 1891815, 2022285, 2648541, 2831199, 3196515, 3909751, 4414235, 4475121, 4625355, 4718665, 6179929, 6606131, 7458535, 11729253, 13242705, 14155995, 18539787, 19548755, 19818393, 22375605, 27368257, 30899645, 33030655, 43259503, 46242917, 58646265, 82104771, 92698935, 99091965, 129778509, 136841285, 138728751, 191577799, 216297515, 231214585, 410523855, 574733397, 648892545, 693643755, 957888995, 1341044593, 2873666985, 4023133779, 6705222965, 20115668895]

約数ペア:

[(1, 20115668895), (3, 6705222965), (5, 4023133779), (7, 2873666985), (15, 1341044593), (21, 957888995), (29, 693643755), (31, 648892545), (35, 574733397), (49, 410523855), (87, 231214585), (93, 216297515), (105, 191577799), (145, 138728751), (147, 136841285), (155, 129778509), (203, 99091965), (217, 92698935), (245, 82104771), (343, 58646265), (435, 46242917), (465, 43259503), (609, 33030655), (651, 30899645), (735, 27368257), (899, 22375605), (1015, 19818393), (1029, 19548755), (1085, 18539787), (1421, 14155995), (1519, 13242705), (1715, 11729253), (2697, 7458535), (3045, 6606131), (3255, 6179929), (4263, 4718665), (4349, 4625355), (4495, 4475121), (4557, 4414235), (5145, 3909751), (6293, 3196515), (7105, 2831199), (7595, 2648541), (9947, 2022285), (10633, 1891815), (13047, 1541785), (13485, 1491707), (18879, 1065505), (21315, 943733), (21745, 925071), (22785, 882847), (29841, 674095), (30443, 660765), (31465, 639303), (31899, 630605), (44051, 456645), (49735, 404457), (53165, 378363), (65235, 308357), (91329, 220255), (94395, 213101), (126121, 159495), (132153, 152215), (134819, 149205)]