257985360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{358313}}^1$

素因数の和:358332

約数の個数: 60

約数和(自身を含む): 866403252

約数和(自身を除く): 608417892

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 358313, 716626, 1074939, 1433252, 1791565, 2149878, 2866504, 3224817, 3583130, 4299756, 5374695, 5733008, 6449634, 7166260, 8599512, 10749390, 12899268, 14332520, 16124085, 17199024, 21498780, 25798536, 28665040, 32248170, 42997560, 51597072, 64496340, 85995120, 128992680, 257985360]

約数ペア:

[(1, 257985360), (2, 128992680), (3, 85995120), (4, 64496340), (5, 51597072), (6, 42997560), (8, 32248170), (9, 28665040), (10, 25798536), (12, 21498780), (15, 17199024), (16, 16124085), (18, 14332520), (20, 12899268), (24, 10749390), (30, 8599512), (36, 7166260), (40, 6449634), (45, 5733008), (48, 5374695), (60, 4299756), (72, 3583130), (80, 3224817), (90, 2866504), (120, 2149878), (144, 1791565), (180, 1433252), (240, 1074939), (360, 716626), (720, 358313)]