421928220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{143513}}^1$

素因数の和:143539

約数の個数: 72

約数和(自身を含む): 1374290064

約数和(自身を除く): 952361844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 143513, 287026, 430539, 574052, 717565, 861078, 1004591, 1435130, 1722156, 2009182, 2152695, 2870260, 3013773, 4018364, 4305390, 5022955, 6027546, 7032137, 8610780, 10045910, 12055092, 14064274, 15068865, 20091820, 21096411, 28128548, 30137730, 35160685, 42192822, 60275460, 70321370, 84385644, 105482055, 140642740, 210964110, 421928220]

約数ペア:

[(1, 421928220), (2, 210964110), (3, 140642740), (4, 105482055), (5, 84385644), (6, 70321370), (7, 60275460), (10, 42192822), (12, 35160685), (14, 30137730), (15, 28128548), (20, 21096411), (21, 20091820), (28, 15068865), (30, 14064274), (35, 12055092), (42, 10045910), (49, 8610780), (60, 7032137), (70, 6027546), (84, 5022955), (98, 4305390), (105, 4018364), (140, 3013773), (147, 2870260), (196, 2152695), (210, 2009182), (245, 1722156), (294, 1435130), (420, 1004591), (490, 861078), (588, 717565), (735, 574052), (980, 430539), (1470, 287026), (2940, 143513)]