31209780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3911}}^1$

素因数の和:3949

約数の個数: 96

約数和(自身を含む): 105154560

約数和(自身を除く): 73944780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3911, 3990, 7822, 7980, 11733, 15644, 19555, 23466, 27377, 39110, 46932, 54754, 58665, 74309, 78220, 82131, 109508, 117330, 136885, 148618, 164262, 222927, 234660, 273770, 297236, 328524, 371545, 410655, 445854, 520163, 547540, 743090, 821310, 891708, 1040326, 1114635, 1486180, 1560489, 1642620, 2080652, 2229270, 2600815, 3120978, 4458540, 5201630, 6241956, 7802445, 10403260, 15604890, 31209780]

約数ペア:

[(1, 31209780), (2, 15604890), (3, 10403260), (4, 7802445), (5, 6241956), (6, 5201630), (7, 4458540), (10, 3120978), (12, 2600815), (14, 2229270), (15, 2080652), (19, 1642620), (20, 1560489), (21, 1486180), (28, 1114635), (30, 1040326), (35, 891708), (38, 821310), (42, 743090), (57, 547540), (60, 520163), (70, 445854), (76, 410655), (84, 371545), (95, 328524), (105, 297236), (114, 273770), (133, 234660), (140, 222927), (190, 164262), (210, 148618), (228, 136885), (266, 117330), (285, 109508), (380, 82131), (399, 78220), (420, 74309), (532, 58665), (570, 54754), (665, 46932), (798, 39110), (1140, 27377), (1330, 23466), (1596, 19555), (1995, 15644), (2660, 11733), (3911, 7980), (3990, 7822)]