215519220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{171047}}^1$

素因数の和:171069

約数の個数: 72

約数和(自身を含む): 747137664

約数和(自身を除く): 531618444

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, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 171047, 342094, 513141, 684188, 855235, 1026282, 1197329, 1539423, 1710470, 2052564, 2394658, 2565705, 3078846, 3420940, 3591987, 4789316, 5131410, 5986645, 6157692, 7183974, 7697115, 10262820, 10775961, 11973290, 14367948, 15394230, 17959935, 21551922, 23946580, 30788460, 35919870, 43103844, 53879805, 71839740, 107759610, 215519220]

約数ペア:

[(1, 215519220), (2, 107759610), (3, 71839740), (4, 53879805), (5, 43103844), (6, 35919870), (7, 30788460), (9, 23946580), (10, 21551922), (12, 17959935), (14, 15394230), (15, 14367948), (18, 11973290), (20, 10775961), (21, 10262820), (28, 7697115), (30, 7183974), (35, 6157692), (36, 5986645), (42, 5131410), (45, 4789316), (60, 3591987), (63, 3420940), (70, 3078846), (84, 2565705), (90, 2394658), (105, 2052564), (126, 1710470), (140, 1539423), (180, 1197329), (210, 1026282), (252, 855235), (315, 684188), (420, 513141), (630, 342094), (1260, 171047)]