21709920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1459}}^1$

素因数の和:1508

約数の個数: 96

約数和(自身を含む): 70640640

約数和(自身を除く): 48930720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 80, 93, 96, 120, 124, 155, 160, 186, 240, 248, 310, 372, 465, 480, 496, 620, 744, 930, 992, 1240, 1459, 1488, 1860, 2480, 2918, 2976, 3720, 4377, 4960, 5836, 7295, 7440, 8754, 11672, 14590, 14880, 17508, 21885, 23344, 29180, 35016, 43770, 45229, 46688, 58360, 70032, 87540, 90458, 116720, 135687, 140064, 175080, 180916, 226145, 233440, 271374, 350160, 361832, 452290, 542748, 678435, 700320, 723664, 904580, 1085496, 1356870, 1447328, 1809160, 2170992, 2713740, 3618320, 4341984, 5427480, 7236640, 10854960, 21709920]

約数ペア:

[(1, 21709920), (2, 10854960), (3, 7236640), (4, 5427480), (5, 4341984), (6, 3618320), (8, 2713740), (10, 2170992), (12, 1809160), (15, 1447328), (16, 1356870), (20, 1085496), (24, 904580), (30, 723664), (31, 700320), (32, 678435), (40, 542748), (48, 452290), (60, 361832), (62, 350160), (80, 271374), (93, 233440), (96, 226145), (120, 180916), (124, 175080), (155, 140064), (160, 135687), (186, 116720), (240, 90458), (248, 87540), (310, 70032), (372, 58360), (465, 46688), (480, 45229), (496, 43770), (620, 35016), (744, 29180), (930, 23344), (992, 21885), (1240, 17508), (1459, 14880), (1488, 14590), (1860, 11672), (2480, 8754), (2918, 7440), (2976, 7295), (3720, 5836), (4377, 4960)]