261376560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5113}}^1$

素因数の和:5203

約数の個数: 120

約数和(自身を含む): 890326944

約数和(自身を除く): 628950384

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 71, 72, 80, 90, 120, 142, 144, 180, 213, 240, 284, 355, 360, 426, 568, 639, 710, 720, 852, 1065, 1136, 1278, 1420, 1704, 2130, 2556, 2840, 3195, 3408, 4260, 5112, 5113, 5680, 6390, 8520, 10224, 10226, 12780, 15339, 17040, 20452, 25560, 25565, 30678, 40904, 46017, 51120, 51130, 61356, 76695, 81808, 92034, 102260, 122712, 153390, 184068, 204520, 230085, 245424, 306780, 363023, 368136, 409040, 460170, 613560, 726046, 736272, 920340, 1089069, 1227120, 1452092, 1815115, 1840680, 2178138, 2904184, 3267207, 3630230, 3681360, 4356276, 5445345, 5808368, 6534414, 7260460, 8712552, 10890690, 13068828, 14520920, 16336035, 17425104, 21781380, 26137656, 29041840, 32672070, 43562760, 52275312, 65344140, 87125520, 130688280, 261376560]

約数ペア:

[(1, 261376560), (2, 130688280), (3, 87125520), (4, 65344140), (5, 52275312), (6, 43562760), (8, 32672070), (9, 29041840), (10, 26137656), (12, 21781380), (15, 17425104), (16, 16336035), (18, 14520920), (20, 13068828), (24, 10890690), (30, 8712552), (36, 7260460), (40, 6534414), (45, 5808368), (48, 5445345), (60, 4356276), (71, 3681360), (72, 3630230), (80, 3267207), (90, 2904184), (120, 2178138), (142, 1840680), (144, 1815115), (180, 1452092), (213, 1227120), (240, 1089069), (284, 920340), (355, 736272), (360, 726046), (426, 613560), (568, 460170), (639, 409040), (710, 368136), (720, 363023), (852, 306780), (1065, 245424), (1136, 230085), (1278, 204520), (1420, 184068), (1704, 153390), (2130, 122712), (2556, 102260), (2840, 92034), (3195, 81808), (3408, 76695), (4260, 61356), (5112, 51130), (5113, 51120), (5680, 46017), (6390, 40904), (8520, 30678), (10224, 25565), (10226, 25560), (12780, 20452), (15339, 17040)]