15141420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 53621568

約数和(自身を除く): 38480148

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 61, 63, 70, 84, 90, 105, 122, 126, 140, 180, 183, 197, 210, 244, 252, 305, 315, 366, 394, 420, 427, 549, 591, 610, 630, 732, 788, 854, 915, 985, 1098, 1182, 1220, 1260, 1281, 1379, 1708, 1773, 1830, 1970, 2135, 2196, 2364, 2562, 2745, 2758, 2955, 3546, 3660, 3843, 3940, 4137, 4270, 5124, 5490, 5516, 5910, 6405, 6895, 7092, 7686, 8274, 8540, 8865, 10980, 11820, 12017, 12411, 12810, 13790, 15372, 16548, 17730, 19215, 20685, 24034, 24822, 25620, 27580, 35460, 36051, 38430, 41370, 48068, 49644, 60085, 62055, 72102, 76860, 82740, 84119, 108153, 120170, 124110, 144204, 168238, 180255, 216306, 240340, 248220, 252357, 336476, 360510, 420595, 432612, 504714, 540765, 721020, 757071, 841190, 1009428, 1081530, 1261785, 1514142, 1682380, 2163060, 2523570, 3028284, 3785355, 5047140, 7570710, 15141420]

約数ペア:

[(1, 15141420), (2, 7570710), (3, 5047140), (4, 3785355), (5, 3028284), (6, 2523570), (7, 2163060), (9, 1682380), (10, 1514142), (12, 1261785), (14, 1081530), (15, 1009428), (18, 841190), (20, 757071), (21, 721020), (28, 540765), (30, 504714), (35, 432612), (36, 420595), (42, 360510), (45, 336476), (60, 252357), (61, 248220), (63, 240340), (70, 216306), (84, 180255), (90, 168238), (105, 144204), (122, 124110), (126, 120170), (140, 108153), (180, 84119), (183, 82740), (197, 76860), (210, 72102), (244, 62055), (252, 60085), (305, 49644), (315, 48068), (366, 41370), (394, 38430), (420, 36051), (427, 35460), (549, 27580), (591, 25620), (610, 24822), (630, 24034), (732, 20685), (788, 19215), (854, 17730), (915, 16548), (985, 15372), (1098, 13790), (1182, 12810), (1220, 12411), (1260, 12017), (1281, 11820), (1379, 10980), (1708, 8865), (1773, 8540), (1830, 8274), (1970, 7686), (2135, 7092), (2196, 6895), (2364, 6405), (2562, 5910), (2745, 5516), (2758, 5490), (2955, 5124), (3546, 4270), (3660, 4137), (3843, 3940)]