208620120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{577}}^1$

素因数の和:745

約数の個数: 128

約数和(自身を含む): 659197440

約数和(自身を除く): 450577320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 131, 138, 184, 230, 262, 276, 345, 393, 460, 524, 552, 577, 655, 690, 786, 920, 1048, 1154, 1310, 1380, 1572, 1731, 1965, 2308, 2620, 2760, 2885, 3013, 3144, 3462, 3930, 4616, 5240, 5770, 6026, 6924, 7860, 8655, 9039, 11540, 12052, 13271, 13848, 15065, 15720, 17310, 18078, 23080, 24104, 26542, 30130, 34620, 36156, 39813, 45195, 53084, 60260, 66355, 69240, 72312, 75587, 79626, 90390, 106168, 120520, 132710, 151174, 159252, 180780, 199065, 226761, 265420, 302348, 318504, 361560, 377935, 398130, 453522, 530840, 604696, 755870, 796260, 907044, 1133805, 1511740, 1592520, 1738501, 1814088, 2267610, 3023480, 3477002, 4535220, 5215503, 6954004, 8692505, 9070440, 10431006, 13908008, 17385010, 20862012, 26077515, 34770020, 41724024, 52155030, 69540040, 104310060, 208620120]

約数ペア:

[(1, 208620120), (2, 104310060), (3, 69540040), (4, 52155030), (5, 41724024), (6, 34770020), (8, 26077515), (10, 20862012), (12, 17385010), (15, 13908008), (20, 10431006), (23, 9070440), (24, 8692505), (30, 6954004), (40, 5215503), (46, 4535220), (60, 3477002), (69, 3023480), (92, 2267610), (115, 1814088), (120, 1738501), (131, 1592520), (138, 1511740), (184, 1133805), (230, 907044), (262, 796260), (276, 755870), (345, 604696), (393, 530840), (460, 453522), (524, 398130), (552, 377935), (577, 361560), (655, 318504), (690, 302348), (786, 265420), (920, 226761), (1048, 199065), (1154, 180780), (1310, 159252), (1380, 151174), (1572, 132710), (1731, 120520), (1965, 106168), (2308, 90390), (2620, 79626), (2760, 75587), (2885, 72312), (3013, 69240), (3144, 66355), (3462, 60260), (3930, 53084), (4616, 45195), (5240, 39813), (5770, 36156), (6026, 34620), (6924, 30130), (7860, 26542), (8655, 24104), (9039, 23080), (11540, 18078), (12052, 17310), (13271, 15720), (13848, 15065)]