78750760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2011}}^1$

素因数の和:2122

約数の個数: 64

約数和(自身を含む): 195566400

約数和(自身を除く): 116815640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 356, 440, 445, 712, 890, 979, 1780, 1958, 2011, 3560, 3916, 4022, 4895, 7832, 8044, 9790, 10055, 16088, 19580, 20110, 22121, 39160, 40220, 44242, 80440, 88484, 110605, 176968, 178979, 221210, 357958, 442420, 715916, 884840, 894895, 1431832, 1789790, 1968769, 3579580, 3937538, 7159160, 7875076, 9843845, 15750152, 19687690, 39375380, 78750760]

約数ペア:

[(1, 78750760), (2, 39375380), (4, 19687690), (5, 15750152), (8, 9843845), (10, 7875076), (11, 7159160), (20, 3937538), (22, 3579580), (40, 1968769), (44, 1789790), (55, 1431832), (88, 894895), (89, 884840), (110, 715916), (178, 442420), (220, 357958), (356, 221210), (440, 178979), (445, 176968), (712, 110605), (890, 88484), (979, 80440), (1780, 44242), (1958, 40220), (2011, 39160), (3560, 22121), (3916, 20110), (4022, 19580), (4895, 16088), (7832, 10055), (8044, 9790)]