320415920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:259

約数の個数: 160

約数和(自身を含む): 850231296

約数和(自身を除く): 529815376

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 61, 80, 88, 94, 110, 122, 127, 176, 188, 220, 235, 244, 254, 305, 376, 440, 470, 488, 508, 517, 610, 635, 671, 752, 880, 940, 976, 1016, 1034, 1220, 1270, 1342, 1397, 1880, 2032, 2068, 2440, 2540, 2585, 2684, 2794, 2867, 3355, 3760, 4136, 4880, 5080, 5170, 5368, 5588, 5734, 5969, 6710, 6985, 7747, 8272, 10160, 10340, 10736, 11176, 11468, 11938, 13420, 13970, 14335, 15494, 20680, 22352, 22936, 23876, 26840, 27940, 28670, 29845, 30988, 31537, 38735, 41360, 45872, 47752, 53680, 55880, 57340, 59690, 61976, 63074, 65659, 77470, 85217, 95504, 111760, 114680, 119380, 123952, 126148, 131318, 154940, 157685, 170434, 229360, 238760, 252296, 262636, 309880, 315370, 328295, 340868, 364109, 426085, 477520, 504592, 525272, 619760, 630740, 656590, 681736, 728218, 852170, 1050544, 1261480, 1313180, 1363472, 1456436, 1704340, 1820545, 2522960, 2626360, 2912872, 3408680, 3641090, 4005199, 5252720, 5825744, 6817360, 7282180, 8010398, 14564360, 16020796, 20025995, 29128720, 32041592, 40051990, 64083184, 80103980, 160207960, 320415920]

約数ペア:

[(1, 320415920), (2, 160207960), (4, 80103980), (5, 64083184), (8, 40051990), (10, 32041592), (11, 29128720), (16, 20025995), (20, 16020796), (22, 14564360), (40, 8010398), (44, 7282180), (47, 6817360), (55, 5825744), (61, 5252720), (80, 4005199), (88, 3641090), (94, 3408680), (110, 2912872), (122, 2626360), (127, 2522960), (176, 1820545), (188, 1704340), (220, 1456436), (235, 1363472), (244, 1313180), (254, 1261480), (305, 1050544), (376, 852170), (440, 728218), (470, 681736), (488, 656590), (508, 630740), (517, 619760), (610, 525272), (635, 504592), (671, 477520), (752, 426085), (880, 364109), (940, 340868), (976, 328295), (1016, 315370), (1034, 309880), (1220, 262636), (1270, 252296), (1342, 238760), (1397, 229360), (1880, 170434), (2032, 157685), (2068, 154940), (2440, 131318), (2540, 126148), (2585, 123952), (2684, 119380), (2794, 114680), (2867, 111760), (3355, 95504), (3760, 85217), (4136, 77470), (4880, 65659), (5080, 63074), (5170, 61976), (5368, 59690), (5588, 57340), (5734, 55880), (5969, 53680), (6710, 47752), (6985, 45872), (7747, 41360), (8272, 38735), (10160, 31537), (10340, 30988), (10736, 29845), (11176, 28670), (11468, 27940), (11938, 26840), (13420, 23876), (13970, 22936), (14335, 22352), (15494, 20680)]