20932380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:508

約数の個数: 144

約数和(自身を含む): 74692800

約数和(自身を除く): 53760420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 420, 444, 449, 518, 555, 630, 666, 740, 777, 898, 1036, 1110, 1260, 1295, 1332, 1347, 1554, 1665, 1796, 2220, 2245, 2331, 2590, 2694, 3108, 3143, 3330, 3885, 4041, 4490, 4662, 5180, 5388, 6286, 6660, 6735, 7770, 8082, 8980, 9324, 9429, 11655, 12572, 13470, 15540, 15715, 16164, 16613, 18858, 20205, 23310, 26940, 28287, 31430, 33226, 37716, 40410, 46620, 47145, 49839, 56574, 62860, 66452, 80820, 83065, 94290, 99678, 113148, 116291, 141435, 149517, 166130, 188580, 199356, 232582, 249195, 282870, 299034, 332260, 348873, 465164, 498390, 565740, 581455, 598068, 697746, 747585, 996780, 1046619, 1162910, 1395492, 1495170, 1744365, 2093238, 2325820, 2990340, 3488730, 4186476, 5233095, 6977460, 10466190, 20932380]

約数ペア:

[(1, 20932380), (2, 10466190), (3, 6977460), (4, 5233095), (5, 4186476), (6, 3488730), (7, 2990340), (9, 2325820), (10, 2093238), (12, 1744365), (14, 1495170), (15, 1395492), (18, 1162910), (20, 1046619), (21, 996780), (28, 747585), (30, 697746), (35, 598068), (36, 581455), (37, 565740), (42, 498390), (45, 465164), (60, 348873), (63, 332260), (70, 299034), (74, 282870), (84, 249195), (90, 232582), (105, 199356), (111, 188580), (126, 166130), (140, 149517), (148, 141435), (180, 116291), (185, 113148), (210, 99678), (222, 94290), (252, 83065), (259, 80820), (315, 66452), (333, 62860), (370, 56574), (420, 49839), (444, 47145), (449, 46620), (518, 40410), (555, 37716), (630, 33226), (666, 31430), (740, 28287), (777, 26940), (898, 23310), (1036, 20205), (1110, 18858), (1260, 16613), (1295, 16164), (1332, 15715), (1347, 15540), (1554, 13470), (1665, 12572), (1796, 11655), (2220, 9429), (2245, 9324), (2331, 8980), (2590, 8082), (2694, 7770), (3108, 6735), (3143, 6660), (3330, 6286), (3885, 5388), (4041, 5180), (4490, 4662)]