1781974260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{81817}}^1$

素因数の和:81854

約数の個数: 108

約数和(自身を含む): 5941459524

約数和(自身を除く): 4159485264

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 121, 132, 165, 180, 198, 220, 242, 330, 363, 396, 484, 495, 605, 660, 726, 990, 1089, 1210, 1452, 1815, 1980, 2178, 2420, 3630, 4356, 5445, 7260, 10890, 21780, 81817, 163634, 245451, 327268, 409085, 490902, 736353, 818170, 899987, 981804, 1227255, 1472706, 1636340, 1799974, 2454510, 2699961, 2945412, 3599948, 3681765, 4499935, 4909020, 5399922, 7363530, 8099883, 8999870, 9899857, 10799844, 13499805, 14727060, 16199766, 17999740, 19799714, 26999610, 29699571, 32399532, 39599428, 40499415, 49499285, 53999220, 59399142, 80998830, 89098713, 98998570, 118798284, 148497855, 161997660, 178197426, 197997140, 296995710, 356394852, 445493565, 593991420, 890987130, 1781974260]

約数ペア:

[(1, 1781974260), (2, 890987130), (3, 593991420), (4, 445493565), (5, 356394852), (6, 296995710), (9, 197997140), (10, 178197426), (11, 161997660), (12, 148497855), (15, 118798284), (18, 98998570), (20, 89098713), (22, 80998830), (30, 59399142), (33, 53999220), (36, 49499285), (44, 40499415), (45, 39599428), (55, 32399532), (60, 29699571), (66, 26999610), (90, 19799714), (99, 17999740), (110, 16199766), (121, 14727060), (132, 13499805), (165, 10799844), (180, 9899857), (198, 8999870), (220, 8099883), (242, 7363530), (330, 5399922), (363, 4909020), (396, 4499935), (484, 3681765), (495, 3599948), (605, 2945412), (660, 2699961), (726, 2454510), (990, 1799974), (1089, 1636340), (1210, 1472706), (1452, 1227255), (1815, 981804), (1980, 899987), (2178, 818170), (2420, 736353), (3630, 490902), (4356, 409085), (5445, 327268), (7260, 245451), (10890, 163634), (21780, 81817)]