31305540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3923}}^1$

素因数の和:3961

約数の個数: 96

約数和(自身を含む): 105477120

約数和(自身を除く): 74171580

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, 3923, 3990, 7846, 7980, 11769, 15692, 19615, 23538, 27461, 39230, 47076, 54922, 58845, 74537, 78460, 82383, 109844, 117690, 137305, 149074, 164766, 223611, 235380, 274610, 298148, 329532, 372685, 411915, 447222, 521759, 549220, 745370, 823830, 894444, 1043518, 1118055, 1490740, 1565277, 1647660, 2087036, 2236110, 2608795, 3130554, 4472220, 5217590, 6261108, 7826385, 10435180, 15652770, 31305540]

約数ペア:

[(1, 31305540), (2, 15652770), (3, 10435180), (4, 7826385), (5, 6261108), (6, 5217590), (7, 4472220), (10, 3130554), (12, 2608795), (14, 2236110), (15, 2087036), (19, 1647660), (20, 1565277), (21, 1490740), (28, 1118055), (30, 1043518), (35, 894444), (38, 823830), (42, 745370), (57, 549220), (60, 521759), (70, 447222), (76, 411915), (84, 372685), (95, 329532), (105, 298148), (114, 274610), (133, 235380), (140, 223611), (190, 164766), (210, 149074), (228, 137305), (266, 117690), (285, 109844), (380, 82383), (399, 78460), (420, 74537), (532, 58845), (570, 54922), (665, 47076), (798, 39230), (1140, 27461), (1330, 23538), (1596, 19615), (1995, 15692), (2660, 11769), (3923, 7980), (3990, 7846)]