21826080

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{659}}^1$

素因数の和:703

約数の個数: 144

約数和(自身を含む): 77837760

約数和(自身を除く): 56011680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 207, 230, 240, 276, 288, 345, 360, 368, 414, 460, 480, 552, 659, 690, 720, 736, 828, 920, 1035, 1104, 1318, 1380, 1440, 1656, 1840, 1977, 2070, 2208, 2636, 2760, 3295, 3312, 3680, 3954, 4140, 5272, 5520, 5931, 6590, 6624, 7908, 8280, 9885, 10544, 11040, 11862, 13180, 15157, 15816, 16560, 19770, 21088, 23724, 26360, 29655, 30314, 31632, 33120, 39540, 45471, 47448, 52720, 59310, 60628, 63264, 75785, 79080, 90942, 94896, 105440, 118620, 121256, 136413, 151570, 158160, 181884, 189792, 227355, 237240, 242512, 272826, 303140, 316320, 363768, 454710, 474480, 485024, 545652, 606280, 682065, 727536, 909420, 948960, 1091304, 1212560, 1364130, 1455072, 1818840, 2182608, 2425120, 2728260, 3637680, 4365216, 5456520, 7275360, 10913040, 21826080]

約数ペア:

[(1, 21826080), (2, 10913040), (3, 7275360), (4, 5456520), (5, 4365216), (6, 3637680), (8, 2728260), (9, 2425120), (10, 2182608), (12, 1818840), (15, 1455072), (16, 1364130), (18, 1212560), (20, 1091304), (23, 948960), (24, 909420), (30, 727536), (32, 682065), (36, 606280), (40, 545652), (45, 485024), (46, 474480), (48, 454710), (60, 363768), (69, 316320), (72, 303140), (80, 272826), (90, 242512), (92, 237240), (96, 227355), (115, 189792), (120, 181884), (138, 158160), (144, 151570), (160, 136413), (180, 121256), (184, 118620), (207, 105440), (230, 94896), (240, 90942), (276, 79080), (288, 75785), (345, 63264), (360, 60628), (368, 59310), (414, 52720), (460, 47448), (480, 45471), (552, 39540), (659, 33120), (690, 31632), (720, 30314), (736, 29655), (828, 26360), (920, 23724), (1035, 21088), (1104, 19770), (1318, 16560), (1380, 15816), (1440, 15157), (1656, 13180), (1840, 11862), (1977, 11040), (2070, 10544), (2208, 9885), (2636, 8280), (2760, 7908), (3295, 6624), (3312, 6590), (3680, 5931), (3954, 5520), (4140, 5272)]