65581020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 209969760

約数和(自身を除く): 144388740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 43, 45, 60, 74, 86, 90, 111, 129, 148, 172, 180, 185, 215, 222, 229, 258, 333, 370, 387, 430, 444, 458, 516, 555, 645, 666, 687, 740, 774, 860, 916, 1110, 1145, 1290, 1332, 1374, 1548, 1591, 1665, 1935, 2061, 2220, 2290, 2580, 2748, 3182, 3330, 3435, 3870, 4122, 4580, 4773, 6364, 6660, 6870, 7740, 7955, 8244, 8473, 9546, 9847, 10305, 13740, 14319, 15910, 16946, 19092, 19694, 20610, 23865, 25419, 28638, 29541, 31820, 33892, 39388, 41220, 42365, 47730, 49235, 50838, 57276, 59082, 71595, 76257, 84730, 88623, 95460, 98470, 101676, 118164, 127095, 143190, 147705, 152514, 169460, 177246, 196940, 254190, 286380, 295410, 305028, 354492, 364339, 381285, 443115, 508380, 590820, 728678, 762570, 886230, 1093017, 1457356, 1525140, 1772460, 1821695, 2186034, 3279051, 3643390, 4372068, 5465085, 6558102, 7286780, 10930170, 13116204, 16395255, 21860340, 32790510, 65581020]

約数ペア:

[(1, 65581020), (2, 32790510), (3, 21860340), (4, 16395255), (5, 13116204), (6, 10930170), (9, 7286780), (10, 6558102), (12, 5465085), (15, 4372068), (18, 3643390), (20, 3279051), (30, 2186034), (36, 1821695), (37, 1772460), (43, 1525140), (45, 1457356), (60, 1093017), (74, 886230), (86, 762570), (90, 728678), (111, 590820), (129, 508380), (148, 443115), (172, 381285), (180, 364339), (185, 354492), (215, 305028), (222, 295410), (229, 286380), (258, 254190), (333, 196940), (370, 177246), (387, 169460), (430, 152514), (444, 147705), (458, 143190), (516, 127095), (555, 118164), (645, 101676), (666, 98470), (687, 95460), (740, 88623), (774, 84730), (860, 76257), (916, 71595), (1110, 59082), (1145, 57276), (1290, 50838), (1332, 49235), (1374, 47730), (1548, 42365), (1591, 41220), (1665, 39388), (1935, 33892), (2061, 31820), (2220, 29541), (2290, 28638), (2580, 25419), (2748, 23865), (3182, 20610), (3330, 19694), (3435, 19092), (3870, 16946), (4122, 15910), (4580, 14319), (4773, 13740), (6364, 10305), (6660, 9847), (6870, 9546), (7740, 8473), (7955, 8244)]