81511320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61751}}^1$

素因数の和:61776

約数の個数: 64

約数和(自身を含む): 266768640

約数和(自身を除く): 185257320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 61751, 123502, 185253, 247004, 308755, 370506, 494008, 617510, 679261, 741012, 926265, 1235020, 1358522, 1482024, 1852530, 2037783, 2470040, 2717044, 3396305, 3705060, 4075566, 5434088, 6792610, 7410120, 8151132, 10188915, 13585220, 16302264, 20377830, 27170440, 40755660, 81511320]

約数ペア:

[(1, 81511320), (2, 40755660), (3, 27170440), (4, 20377830), (5, 16302264), (6, 13585220), (8, 10188915), (10, 8151132), (11, 7410120), (12, 6792610), (15, 5434088), (20, 4075566), (22, 3705060), (24, 3396305), (30, 2717044), (33, 2470040), (40, 2037783), (44, 1852530), (55, 1482024), (60, 1358522), (66, 1235020), (88, 926265), (110, 741012), (120, 679261), (132, 617510), (165, 494008), (220, 370506), (264, 308755), (330, 247004), (440, 185253), (660, 123502), (1320, 61751)]