31620420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13513}}^1$

素因数の和:13541

約数の個数: 72

約数和(自身を含む): 103301016

約数和(自身を除く): 71680596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 13513, 27026, 40539, 54052, 67565, 81078, 121617, 135130, 162156, 175669, 202695, 243234, 270260, 351338, 405390, 486468, 527007, 608085, 702676, 810780, 878345, 1054014, 1216170, 1581021, 1756690, 2108028, 2432340, 2635035, 3162042, 3513380, 5270070, 6324084, 7905105, 10540140, 15810210, 31620420]

約数ペア:

[(1, 31620420), (2, 15810210), (3, 10540140), (4, 7905105), (5, 6324084), (6, 5270070), (9, 3513380), (10, 3162042), (12, 2635035), (13, 2432340), (15, 2108028), (18, 1756690), (20, 1581021), (26, 1216170), (30, 1054014), (36, 878345), (39, 810780), (45, 702676), (52, 608085), (60, 527007), (65, 486468), (78, 405390), (90, 351338), (117, 270260), (130, 243234), (156, 202695), (180, 175669), (195, 162156), (234, 135130), (260, 121617), (390, 81078), (468, 67565), (585, 54052), (780, 40539), (1170, 27026), (2340, 13513)]