81781440

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6553}}^1$

素因数の和:6586

約数の個数: 112

約数和(自身を含む): 279672288

約数和(自身を除く): 197890848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 6553, 12480, 13106, 19659, 26212, 32765, 39318, 52424, 65530, 78636, 85189, 98295, 104848, 131060, 157272, 170378, 196590, 209696, 255567, 262120, 314544, 340756, 393180, 419392, 425945, 511134, 524240, 629088, 681512, 786360, 851890, 1022268, 1048480, 1258176, 1277835, 1363024, 1572720, 1703780, 2044536, 2096960, 2555670, 2726048, 3145440, 3407560, 4089072, 5111340, 5452096, 6290880, 6815120, 8178144, 10222680, 13630240, 16356288, 20445360, 27260480, 40890720, 81781440]

約数ペア:

[(1, 81781440), (2, 40890720), (3, 27260480), (4, 20445360), (5, 16356288), (6, 13630240), (8, 10222680), (10, 8178144), (12, 6815120), (13, 6290880), (15, 5452096), (16, 5111340), (20, 4089072), (24, 3407560), (26, 3145440), (30, 2726048), (32, 2555670), (39, 2096960), (40, 2044536), (48, 1703780), (52, 1572720), (60, 1363024), (64, 1277835), (65, 1258176), (78, 1048480), (80, 1022268), (96, 851890), (104, 786360), (120, 681512), (130, 629088), (156, 524240), (160, 511134), (192, 425945), (195, 419392), (208, 393180), (240, 340756), (260, 314544), (312, 262120), (320, 255567), (390, 209696), (416, 196590), (480, 170378), (520, 157272), (624, 131060), (780, 104848), (832, 98295), (960, 85189), (1040, 78636), (1248, 65530), (1560, 52424), (2080, 39318), (2496, 32765), (3120, 26212), (4160, 19659), (6240, 13106), (6553, 12480)]