81537360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17881}}^1$

素因数の和:17916

約数の個数: 80

約数和(自身を含む): 266084160

約数和(自身を除く): 184546800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 17881, 35762, 53643, 71524, 89405, 107286, 143048, 178810, 214572, 268215, 286096, 339739, 357620, 429144, 536430, 679478, 715240, 858288, 1019217, 1072860, 1358956, 1430480, 1698695, 2038434, 2145720, 2717912, 3397390, 4076868, 4291440, 5096085, 5435824, 6794780, 8153736, 10192170, 13589560, 16307472, 20384340, 27179120, 40768680, 81537360]

約数ペア:

[(1, 81537360), (2, 40768680), (3, 27179120), (4, 20384340), (5, 16307472), (6, 13589560), (8, 10192170), (10, 8153736), (12, 6794780), (15, 5435824), (16, 5096085), (19, 4291440), (20, 4076868), (24, 3397390), (30, 2717912), (38, 2145720), (40, 2038434), (48, 1698695), (57, 1430480), (60, 1358956), (76, 1072860), (80, 1019217), (95, 858288), (114, 715240), (120, 679478), (152, 536430), (190, 429144), (228, 357620), (240, 339739), (285, 286096), (304, 268215), (380, 214572), (456, 178810), (570, 143048), (760, 107286), (912, 89405), (1140, 71524), (1520, 53643), (2280, 35762), (4560, 17881)]