81919560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:547

約数の個数: 128

約数和(自身を含む): 260858880

約数和(自身を除く): 178939320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 67, 69, 92, 115, 120, 134, 138, 184, 201, 230, 268, 276, 335, 345, 402, 443, 460, 536, 552, 670, 690, 804, 886, 920, 1005, 1329, 1340, 1380, 1541, 1608, 1772, 2010, 2215, 2658, 2680, 2760, 3082, 3544, 4020, 4430, 4623, 5316, 6164, 6645, 7705, 8040, 8860, 9246, 10189, 10632, 12328, 13290, 15410, 17720, 18492, 20378, 23115, 26580, 29681, 30567, 30820, 36984, 40756, 46230, 50945, 53160, 59362, 61134, 61640, 81512, 89043, 92460, 101890, 118724, 122268, 148405, 152835, 178086, 184920, 203780, 237448, 244536, 296810, 305670, 356172, 407560, 445215, 593620, 611340, 682663, 712344, 890430, 1187240, 1222680, 1365326, 1780860, 2047989, 2730652, 3413315, 3561720, 4095978, 5461304, 6826630, 8191956, 10239945, 13653260, 16383912, 20479890, 27306520, 40959780, 81919560]

約数ペア:

[(1, 81919560), (2, 40959780), (3, 27306520), (4, 20479890), (5, 16383912), (6, 13653260), (8, 10239945), (10, 8191956), (12, 6826630), (15, 5461304), (20, 4095978), (23, 3561720), (24, 3413315), (30, 2730652), (40, 2047989), (46, 1780860), (60, 1365326), (67, 1222680), (69, 1187240), (92, 890430), (115, 712344), (120, 682663), (134, 611340), (138, 593620), (184, 445215), (201, 407560), (230, 356172), (268, 305670), (276, 296810), (335, 244536), (345, 237448), (402, 203780), (443, 184920), (460, 178086), (536, 152835), (552, 148405), (670, 122268), (690, 118724), (804, 101890), (886, 92460), (920, 89043), (1005, 81512), (1329, 61640), (1340, 61134), (1380, 59362), (1541, 53160), (1608, 50945), (1772, 46230), (2010, 40756), (2215, 36984), (2658, 30820), (2680, 30567), (2760, 29681), (3082, 26580), (3544, 23115), (4020, 20378), (4430, 18492), (4623, 17720), (5316, 15410), (6164, 13290), (6645, 12328), (7705, 10632), (8040, 10189), (8860, 9246)]