20271963520

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{443}}^1\times {\mathrm{563}}^1$

素因数の和:1152

約数の個数: 128

約数和(自身を含む): 49041469440

約数和(自身を除く): 28769505920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 443, 508, 563, 635, 640, 886, 1016, 1126, 1270, 1772, 2032, 2215, 2252, 2540, 2815, 3544, 4064, 4430, 4504, 5080, 5630, 7088, 8128, 8860, 9008, 10160, 11260, 14176, 16256, 17720, 18016, 20320, 22520, 28352, 35440, 36032, 40640, 45040, 56261, 56704, 70880, 71501, 72064, 81280, 90080, 112522, 141760, 143002, 180160, 225044, 249409, 281305, 283520, 286004, 357505, 360320, 450088, 498818, 562610, 572008, 715010, 900176, 997636, 1125220, 1144016, 1247045, 1430020, 1800352, 1995272, 2250440, 2288032, 2494090, 2860040, 3600704, 3990544, 4500880, 4576064, 4988180, 5720080, 7201408, 7981088, 9001760, 9152128, 9976360, 11440160, 15962176, 18003520, 19952720, 22880320, 31674943, 31924352, 36007040, 39905440, 45760640, 63349886, 79810880, 126699772, 158374715, 159621760, 253399544, 316749430, 506799088, 633498860, 1013598176, 1266997720, 2027196352, 2533995440, 4054392704, 5067990880, 10135981760, 20271963520]

約数ペア:

[(1, 20271963520), (2, 10135981760), (4, 5067990880), (5, 4054392704), (8, 2533995440), (10, 2027196352), (16, 1266997720), (20, 1013598176), (32, 633498860), (40, 506799088), (64, 316749430), (80, 253399544), (127, 159621760), (128, 158374715), (160, 126699772), (254, 79810880), (320, 63349886), (443, 45760640), (508, 39905440), (563, 36007040), (635, 31924352), (640, 31674943), (886, 22880320), (1016, 19952720), (1126, 18003520), (1270, 15962176), (1772, 11440160), (2032, 9976360), (2215, 9152128), (2252, 9001760), (2540, 7981088), (2815, 7201408), (3544, 5720080), (4064, 4988180), (4430, 4576064), (4504, 4500880), (5080, 3990544), (5630, 3600704), (7088, 2860040), (8128, 2494090), (8860, 2288032), (9008, 2250440), (10160, 1995272), (11260, 1800352), (14176, 1430020), (16256, 1247045), (17720, 1144016), (18016, 1125220), (20320, 997636), (22520, 900176), (28352, 715010), (35440, 572008), (36032, 562610), (40640, 498818), (45040, 450088), (56261, 360320), (56704, 357505), (70880, 286004), (71501, 283520), (72064, 281305), (81280, 249409), (90080, 225044), (112522, 180160), (141760, 143002)]