20590560

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:281

約数の個数: 144

約数和(自身を含む): 71547840

約数和(自身を除く): 50957280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 79, 80, 90, 96, 120, 144, 158, 160, 180, 181, 237, 240, 288, 316, 360, 362, 395, 474, 480, 543, 632, 711, 720, 724, 790, 905, 948, 1086, 1185, 1264, 1422, 1440, 1448, 1580, 1629, 1810, 1896, 2172, 2370, 2528, 2715, 2844, 2896, 3160, 3258, 3555, 3620, 3792, 4344, 4740, 5430, 5688, 5792, 6320, 6516, 7110, 7240, 7584, 8145, 8688, 9480, 10860, 11376, 12640, 13032, 14220, 14299, 14480, 16290, 17376, 18960, 21720, 22752, 26064, 28440, 28598, 28960, 32580, 37920, 42897, 43440, 52128, 56880, 57196, 65160, 71495, 85794, 86880, 113760, 114392, 128691, 130320, 142990, 171588, 214485, 228784, 257382, 260640, 285980, 343176, 428970, 457568, 514764, 571960, 643455, 686352, 857940, 1029528, 1143920, 1286910, 1372704, 1715880, 2059056, 2287840, 2573820, 3431760, 4118112, 5147640, 6863520, 10295280, 20590560]

約数ペア:

[(1, 20590560), (2, 10295280), (3, 6863520), (4, 5147640), (5, 4118112), (6, 3431760), (8, 2573820), (9, 2287840), (10, 2059056), (12, 1715880), (15, 1372704), (16, 1286910), (18, 1143920), (20, 1029528), (24, 857940), (30, 686352), (32, 643455), (36, 571960), (40, 514764), (45, 457568), (48, 428970), (60, 343176), (72, 285980), (79, 260640), (80, 257382), (90, 228784), (96, 214485), (120, 171588), (144, 142990), (158, 130320), (160, 128691), (180, 114392), (181, 113760), (237, 86880), (240, 85794), (288, 71495), (316, 65160), (360, 57196), (362, 56880), (395, 52128), (474, 43440), (480, 42897), (543, 37920), (632, 32580), (711, 28960), (720, 28598), (724, 28440), (790, 26064), (905, 22752), (948, 21720), (1086, 18960), (1185, 17376), (1264, 16290), (1422, 14480), (1440, 14299), (1448, 14220), (1580, 13032), (1629, 12640), (1810, 11376), (1896, 10860), (2172, 9480), (2370, 8688), (2528, 8145), (2715, 7584), (2844, 7240), (2896, 7110), (3160, 6516), (3258, 6320), (3555, 5792), (3620, 5688), (3792, 5430), (4344, 4740)]