215460

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{19}}^1$

素因数の和:47

約数の個数: 120

約数和(自身を含む): 813120

約数和(自身を除く): 597660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 81, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 162, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 324, 342, 378, 380, 399, 405, 420, 513, 532, 540, 567, 570, 630, 665, 684, 756, 798, 810, 855, 945, 1026, 1134, 1140, 1197, 1260, 1330, 1539, 1596, 1620, 1710, 1890, 1995, 2052, 2268, 2394, 2565, 2660, 2835, 3078, 3420, 3591, 3780, 3990, 4788, 5130, 5670, 5985, 6156, 7182, 7695, 7980, 10260, 10773, 11340, 11970, 14364, 15390, 17955, 21546, 23940, 30780, 35910, 43092, 53865, 71820, 107730, 215460]

約数ペア:

[(1, 215460), (2, 107730), (3, 71820), (4, 53865), (5, 43092), (6, 35910), (7, 30780), (9, 23940), (10, 21546), (12, 17955), (14, 15390), (15, 14364), (18, 11970), (19, 11340), (20, 10773), (21, 10260), (27, 7980), (28, 7695), (30, 7182), (35, 6156), (36, 5985), (38, 5670), (42, 5130), (45, 4788), (54, 3990), (57, 3780), (60, 3591), (63, 3420), (70, 3078), (76, 2835), (81, 2660), (84, 2565), (90, 2394), (95, 2268), (105, 2052), (108, 1995), (114, 1890), (126, 1710), (133, 1620), (135, 1596), (140, 1539), (162, 1330), (171, 1260), (180, 1197), (189, 1140), (190, 1134), (210, 1026), (228, 945), (252, 855), (266, 810), (270, 798), (285, 756), (315, 684), (324, 665), (342, 630), (378, 570), (380, 567), (399, 540), (405, 532), (420, 513)]