77775280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2851}}^1$

素因数の和:2906

約数の個数: 80

約数和(自身を含む): 203701248

約数和(自身を除く): 125925968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 2851, 3410, 5456, 5702, 6820, 11404, 13640, 14255, 22808, 27280, 28510, 31361, 45616, 57020, 62722, 88381, 114040, 125444, 156805, 176762, 228080, 250888, 313610, 353524, 441905, 501776, 627220, 707048, 883810, 972191, 1254440, 1414096, 1767620, 1944382, 2508880, 3535240, 3888764, 4860955, 7070480, 7777528, 9721910, 15555056, 19443820, 38887640, 77775280]

約数ペア:

[(1, 77775280), (2, 38887640), (4, 19443820), (5, 15555056), (8, 9721910), (10, 7777528), (11, 7070480), (16, 4860955), (20, 3888764), (22, 3535240), (31, 2508880), (40, 1944382), (44, 1767620), (55, 1414096), (62, 1254440), (80, 972191), (88, 883810), (110, 707048), (124, 627220), (155, 501776), (176, 441905), (220, 353524), (248, 313610), (310, 250888), (341, 228080), (440, 176762), (496, 156805), (620, 125444), (682, 114040), (880, 88381), (1240, 62722), (1364, 57020), (1705, 45616), (2480, 31361), (2728, 28510), (2851, 27280), (3410, 22808), (5456, 14255), (5702, 13640), (6820, 11404)]