19854780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{449}}^1$

素因数の和:539

約数の個数: 96

約数和(自身を含む): 61689600

約数和(自身を除く): 41834820

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 67, 110, 132, 134, 165, 201, 220, 268, 330, 335, 402, 449, 660, 670, 737, 804, 898, 1005, 1340, 1347, 1474, 1796, 2010, 2211, 2245, 2694, 2948, 3685, 4020, 4422, 4490, 4939, 5388, 6735, 7370, 8844, 8980, 9878, 11055, 13470, 14740, 14817, 19756, 22110, 24695, 26940, 29634, 30083, 44220, 49390, 59268, 60166, 74085, 90249, 98780, 120332, 148170, 150415, 180498, 296340, 300830, 330913, 360996, 451245, 601660, 661826, 902490, 992739, 1323652, 1654565, 1804980, 1985478, 3309130, 3970956, 4963695, 6618260, 9927390, 19854780]

約数ペア:

[(1, 19854780), (2, 9927390), (3, 6618260), (4, 4963695), (5, 3970956), (6, 3309130), (10, 1985478), (11, 1804980), (12, 1654565), (15, 1323652), (20, 992739), (22, 902490), (30, 661826), (33, 601660), (44, 451245), (55, 360996), (60, 330913), (66, 300830), (67, 296340), (110, 180498), (132, 150415), (134, 148170), (165, 120332), (201, 98780), (220, 90249), (268, 74085), (330, 60166), (335, 59268), (402, 49390), (449, 44220), (660, 30083), (670, 29634), (737, 26940), (804, 24695), (898, 22110), (1005, 19756), (1340, 14817), (1347, 14740), (1474, 13470), (1796, 11055), (2010, 9878), (2211, 8980), (2245, 8844), (2694, 7370), (2948, 6735), (3685, 5388), (4020, 4939), (4422, 4490)]