90174780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2543}}^1$

素因数の和:2755

約数の個数: 72

約数和(自身を含む): 275026752

約数和(自身を除く): 184851972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 985, 1182, 1773, 1970, 2364, 2543, 2955, 3546, 3940, 5086, 5910, 7092, 7629, 8865, 10172, 11820, 12715, 15258, 17730, 22887, 25430, 30516, 35460, 38145, 45774, 50860, 76290, 91548, 114435, 152580, 228870, 457740, 500971, 1001942, 1502913, 2003884, 2504855, 3005826, 4508739, 5009710, 6011652, 7514565, 9017478, 10019420, 15029130, 18034956, 22543695, 30058260, 45087390, 90174780]

約数ペア:

[(1, 90174780), (2, 45087390), (3, 30058260), (4, 22543695), (5, 18034956), (6, 15029130), (9, 10019420), (10, 9017478), (12, 7514565), (15, 6011652), (18, 5009710), (20, 4508739), (30, 3005826), (36, 2504855), (45, 2003884), (60, 1502913), (90, 1001942), (180, 500971), (197, 457740), (394, 228870), (591, 152580), (788, 114435), (985, 91548), (1182, 76290), (1773, 50860), (1970, 45774), (2364, 38145), (2543, 35460), (2955, 30516), (3546, 25430), (3940, 22887), (5086, 17730), (5910, 15258), (7092, 12715), (7629, 11820), (8865, 10172)]