21590640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:367

約数の個数: 120

約数和(自身を含む): 73352448

約数和(自身を除く): 51761808

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, 157, 180, 191, 240, 314, 360, 382, 471, 573, 628, 720, 764, 785, 942, 955, 1146, 1256, 1413, 1528, 1570, 1719, 1884, 1910, 2292, 2355, 2512, 2826, 2865, 3056, 3140, 3438, 3768, 3820, 4584, 4710, 5652, 5730, 6280, 6876, 7065, 7536, 7640, 8595, 9168, 9420, 11304, 11460, 12560, 13752, 14130, 15280, 17190, 18840, 22608, 22920, 27504, 28260, 29987, 34380, 37680, 45840, 56520, 59974, 68760, 89961, 113040, 119948, 137520, 149935, 179922, 239896, 269883, 299870, 359844, 449805, 479792, 539766, 599740, 719688, 899610, 1079532, 1199480, 1349415, 1439376, 1799220, 2159064, 2398960, 2698830, 3598440, 4318128, 5397660, 7196880, 10795320, 21590640]

約数ペア:

[(1, 21590640), (2, 10795320), (3, 7196880), (4, 5397660), (5, 4318128), (6, 3598440), (8, 2698830), (9, 2398960), (10, 2159064), (12, 1799220), (15, 1439376), (16, 1349415), (18, 1199480), (20, 1079532), (24, 899610), (30, 719688), (36, 599740), (40, 539766), (45, 479792), (48, 449805), (60, 359844), (72, 299870), (80, 269883), (90, 239896), (120, 179922), (144, 149935), (157, 137520), (180, 119948), (191, 113040), (240, 89961), (314, 68760), (360, 59974), (382, 56520), (471, 45840), (573, 37680), (628, 34380), (720, 29987), (764, 28260), (785, 27504), (942, 22920), (955, 22608), (1146, 18840), (1256, 17190), (1413, 15280), (1528, 14130), (1570, 13752), (1719, 12560), (1884, 11460), (1910, 11304), (2292, 9420), (2355, 9168), (2512, 8595), (2826, 7640), (2865, 7536), (3056, 7065), (3140, 6876), (3438, 6280), (3768, 5730), (3820, 5652), (4584, 4710)]