1681891040

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1\times {\mathrm{491}}^1$

素因数の和:856

約数の個数: 96

約数和(自身を含む): 4046837760

約数和(自身を除く): 2364946720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 271, 316, 395, 491, 542, 632, 790, 982, 1084, 1264, 1355, 1580, 1964, 2168, 2455, 2528, 2710, 3160, 3928, 4336, 4910, 5420, 6320, 7856, 8672, 9820, 10840, 12640, 15712, 19640, 21409, 21680, 38789, 39280, 42818, 43360, 77578, 78560, 85636, 107045, 133061, 155156, 171272, 193945, 214090, 266122, 310312, 342544, 387890, 428180, 532244, 620624, 665305, 685088, 775780, 856360, 1064488, 1241248, 1330610, 1551560, 1712720, 2128976, 2661220, 3103120, 3425440, 4257952, 5322440, 6206240, 10511819, 10644880, 21023638, 21289760, 42047276, 52559095, 84094552, 105118190, 168189104, 210236380, 336378208, 420472760, 840945520, 1681891040]

約数ペア:

[(1, 1681891040), (2, 840945520), (4, 420472760), (5, 336378208), (8, 210236380), (10, 168189104), (16, 105118190), (20, 84094552), (32, 52559095), (40, 42047276), (79, 21289760), (80, 21023638), (158, 10644880), (160, 10511819), (271, 6206240), (316, 5322440), (395, 4257952), (491, 3425440), (542, 3103120), (632, 2661220), (790, 2128976), (982, 1712720), (1084, 1551560), (1264, 1330610), (1355, 1241248), (1580, 1064488), (1964, 856360), (2168, 775780), (2455, 685088), (2528, 665305), (2710, 620624), (3160, 532244), (3928, 428180), (4336, 387890), (4910, 342544), (5420, 310312), (6320, 266122), (7856, 214090), (8672, 193945), (9820, 171272), (10840, 155156), (12640, 133061), (15712, 107045), (19640, 85636), (21409, 78560), (21680, 77578), (38789, 43360), (39280, 42818)]