18721530

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{797}}^1$

素因数の和:845

約数の個数: 80

約数和(自身を含む): 52141320

約数和(自身を除く): 33419790

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 81, 87, 90, 135, 145, 162, 174, 261, 270, 290, 405, 435, 522, 783, 797, 810, 870, 1305, 1566, 1594, 2349, 2391, 2610, 3915, 3985, 4698, 4782, 7173, 7830, 7970, 11745, 11955, 14346, 21519, 23113, 23490, 23910, 35865, 43038, 46226, 64557, 69339, 71730, 107595, 115565, 129114, 138678, 208017, 215190, 231130, 322785, 346695, 416034, 624051, 645570, 693390, 1040085, 1248102, 1872153, 2080170, 3120255, 3744306, 6240510, 9360765, 18721530]

約数ペア:

[(1, 18721530), (2, 9360765), (3, 6240510), (5, 3744306), (6, 3120255), (9, 2080170), (10, 1872153), (15, 1248102), (18, 1040085), (27, 693390), (29, 645570), (30, 624051), (45, 416034), (54, 346695), (58, 322785), (81, 231130), (87, 215190), (90, 208017), (135, 138678), (145, 129114), (162, 115565), (174, 107595), (261, 71730), (270, 69339), (290, 64557), (405, 46226), (435, 43038), (522, 35865), (783, 23910), (797, 23490), (810, 23113), (870, 21519), (1305, 14346), (1566, 11955), (1594, 11745), (2349, 7970), (2391, 7830), (2610, 7173), (3915, 4782), (3985, 4698)]