66817960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{839}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 165110400

約数和(自身を除く): 98292440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 181, 220, 362, 440, 724, 839, 905, 1448, 1678, 1810, 1991, 3356, 3620, 3982, 4195, 6712, 7240, 7964, 8390, 9229, 9955, 15928, 16780, 18458, 19910, 33560, 36916, 39820, 46145, 73832, 79640, 92290, 151859, 184580, 303718, 369160, 607436, 759295, 1214872, 1518590, 1670449, 3037180, 3340898, 6074360, 6681796, 8352245, 13363592, 16704490, 33408980, 66817960]

約数ペア:

[(1, 66817960), (2, 33408980), (4, 16704490), (5, 13363592), (8, 8352245), (10, 6681796), (11, 6074360), (20, 3340898), (22, 3037180), (40, 1670449), (44, 1518590), (55, 1214872), (88, 759295), (110, 607436), (181, 369160), (220, 303718), (362, 184580), (440, 151859), (724, 92290), (839, 79640), (905, 73832), (1448, 46145), (1678, 39820), (1810, 36916), (1991, 33560), (3356, 19910), (3620, 18458), (3982, 16780), (4195, 15928), (6712, 9955), (7240, 9229), (7964, 8390)]