90420705

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:628

約数の個数: 80

約数和(自身を含む): 179397504

約数和(自身を除く): 88976799

約数列:

[1, 3, 5, 9, 15, 17, 23, 27, 45, 51, 69, 81, 85, 115, 135, 153, 207, 255, 345, 391, 405, 459, 571, 621, 765, 1035, 1173, 1377, 1713, 1863, 1955, 2295, 2855, 3105, 3519, 5139, 5865, 6885, 8565, 9315, 9707, 10557, 13133, 15417, 17595, 25695, 29121, 31671, 39399, 46251, 48535, 52785, 65665, 77085, 87363, 118197, 145605, 158355, 196995, 223261, 231255, 262089, 354591, 436815, 590985, 669783, 786267, 1063773, 1116305, 1310445, 1772955, 2009349, 3348915, 3931335, 5318865, 6028047, 10046745, 18084141, 30140235, 90420705]

約数ペア:

[(1, 90420705), (3, 30140235), (5, 18084141), (9, 10046745), (15, 6028047), (17, 5318865), (23, 3931335), (27, 3348915), (45, 2009349), (51, 1772955), (69, 1310445), (81, 1116305), (85, 1063773), (115, 786267), (135, 669783), (153, 590985), (207, 436815), (255, 354591), (345, 262089), (391, 231255), (405, 223261), (459, 196995), (571, 158355), (621, 145605), (765, 118197), (1035, 87363), (1173, 77085), (1377, 65665), (1713, 52785), (1863, 48535), (1955, 46251), (2295, 39399), (2855, 31671), (3105, 29121), (3519, 25695), (5139, 17595), (5865, 15417), (6885, 13133), (8565, 10557), (9315, 9707)]