20057520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11939}}^1$

素因数の和:11962

約数の個数: 80

約数和(自身を含む): 71066880

約数和(自身を除く): 51009360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11939, 23878, 35817, 47756, 59695, 71634, 83573, 95512, 119390, 143268, 167146, 179085, 191024, 238780, 250719, 286536, 334292, 358170, 417865, 477560, 501438, 573072, 668584, 716340, 835730, 955120, 1002876, 1253595, 1337168, 1432680, 1671460, 2005752, 2507190, 2865360, 3342920, 4011504, 5014380, 6685840, 10028760, 20057520]

約数ペア:

[(1, 20057520), (2, 10028760), (3, 6685840), (4, 5014380), (5, 4011504), (6, 3342920), (7, 2865360), (8, 2507190), (10, 2005752), (12, 1671460), (14, 1432680), (15, 1337168), (16, 1253595), (20, 1002876), (21, 955120), (24, 835730), (28, 716340), (30, 668584), (35, 573072), (40, 501438), (42, 477560), (48, 417865), (56, 358170), (60, 334292), (70, 286536), (80, 250719), (84, 238780), (105, 191024), (112, 179085), (120, 167146), (140, 143268), (168, 119390), (210, 95512), (240, 83573), (280, 71634), (336, 59695), (420, 47756), (560, 35817), (840, 23878), (1680, 11939)]