80897440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 192

約数和(自身を含む): 228614400

約数和(自身を除く): 147716960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 23, 26, 32, 38, 40, 46, 52, 65, 76, 80, 89, 92, 95, 104, 115, 130, 152, 160, 178, 184, 190, 208, 230, 247, 260, 299, 304, 356, 368, 380, 416, 437, 445, 460, 494, 520, 598, 608, 712, 736, 760, 874, 890, 920, 988, 1040, 1157, 1196, 1235, 1424, 1495, 1520, 1691, 1748, 1780, 1840, 1976, 2047, 2080, 2185, 2314, 2392, 2470, 2848, 2990, 3040, 3382, 3496, 3560, 3680, 3952, 4094, 4370, 4628, 4784, 4940, 5681, 5785, 5980, 6764, 6992, 7120, 7904, 8188, 8455, 8740, 9256, 9568, 9880, 10235, 11362, 11570, 11960, 13528, 13984, 14240, 16376, 16910, 17480, 18512, 19760, 20470, 21983, 22724, 23140, 23920, 26611, 27056, 28405, 32752, 33820, 34960, 37024, 38893, 39520, 40940, 43966, 45448, 46280, 47840, 53222, 54112, 56810, 65504, 67640, 69920, 77786, 81880, 87932, 90896, 92560, 106444, 109915, 113620, 133055, 135280, 155572, 163760, 175864, 181792, 185120, 194465, 212888, 219830, 227240, 266110, 270560, 311144, 327520, 351728, 388930, 425776, 439660, 454480, 505609, 532220, 622288, 703456, 777860, 851552, 879320, 908960, 1011218, 1064440, 1244576, 1555720, 1758640, 2022436, 2128880, 2528045, 3111440, 3517280, 4044872, 4257760, 5056090, 6222880, 8089744, 10112180, 16179488, 20224360, 40448720, 80897440]

約数ペア:

[(1, 80897440), (2, 40448720), (4, 20224360), (5, 16179488), (8, 10112180), (10, 8089744), (13, 6222880), (16, 5056090), (19, 4257760), (20, 4044872), (23, 3517280), (26, 3111440), (32, 2528045), (38, 2128880), (40, 2022436), (46, 1758640), (52, 1555720), (65, 1244576), (76, 1064440), (80, 1011218), (89, 908960), (92, 879320), (95, 851552), (104, 777860), (115, 703456), (130, 622288), (152, 532220), (160, 505609), (178, 454480), (184, 439660), (190, 425776), (208, 388930), (230, 351728), (247, 327520), (260, 311144), (299, 270560), (304, 266110), (356, 227240), (368, 219830), (380, 212888), (416, 194465), (437, 185120), (445, 181792), (460, 175864), (494, 163760), (520, 155572), (598, 135280), (608, 133055), (712, 113620), (736, 109915), (760, 106444), (874, 92560), (890, 90896), (920, 87932), (988, 81880), (1040, 77786), (1157, 69920), (1196, 67640), (1235, 65504), (1424, 56810), (1495, 54112), (1520, 53222), (1691, 47840), (1748, 46280), (1780, 45448), (1840, 43966), (1976, 40940), (2047, 39520), (2080, 38893), (2185, 37024), (2314, 34960), (2392, 33820), (2470, 32752), (2848, 28405), (2990, 27056), (3040, 26611), (3382, 23920), (3496, 23140), (3560, 22724), (3680, 21983), (3952, 20470), (4094, 19760), (4370, 18512), (4628, 17480), (4784, 16910), (4940, 16376), (5681, 14240), (5785, 13984), (5980, 13528), (6764, 11960), (6992, 11570), (7120, 11362), (7904, 10235), (8188, 9880), (8455, 9568), (8740, 9256)]