23940

素因数分解:

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

素因数の和:41

約数の個数: 72

約数和(自身を含む): 87360

約数和(自身を除く): 63420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 855, 1140, 1197, 1260, 1330, 1596, 1710, 1995, 2394, 2660, 3420, 3990, 4788, 5985, 7980, 11970, 23940]

約数ペア:

[(1, 23940), (2, 11970), (3, 7980), (4, 5985), (5, 4788), (6, 3990), (7, 3420), (9, 2660), (10, 2394), (12, 1995), (14, 1710), (15, 1596), (18, 1330), (19, 1260), (20, 1197), (21, 1140), (28, 855), (30, 798), (35, 684), (36, 665), (38, 630), (42, 570), (45, 532), (57, 420), (60, 399), (63, 380), (70, 342), (76, 315), (84, 285), (90, 266), (95, 252), (105, 228), (114, 210), (126, 190), (133, 180), (140, 171)]