40139890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{379}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 88646400

約数和(自身を除く): 48506510

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 89, 119, 170, 178, 238, 379, 445, 595, 623, 758, 890, 1190, 1246, 1513, 1895, 2653, 3026, 3115, 3790, 5306, 6230, 6443, 7565, 10591, 12886, 13265, 15130, 21182, 26530, 32215, 33731, 45101, 52955, 64430, 67462, 90202, 105910, 168655, 225505, 236117, 337310, 451010, 472234, 573427, 1146854, 1180585, 2361170, 2867135, 4013989, 5734270, 8027978, 20069945, 40139890]

約数ペア:

[(1, 40139890), (2, 20069945), (5, 8027978), (7, 5734270), (10, 4013989), (14, 2867135), (17, 2361170), (34, 1180585), (35, 1146854), (70, 573427), (85, 472234), (89, 451010), (119, 337310), (170, 236117), (178, 225505), (238, 168655), (379, 105910), (445, 90202), (595, 67462), (623, 64430), (758, 52955), (890, 45101), (1190, 33731), (1246, 32215), (1513, 26530), (1895, 21182), (2653, 15130), (3026, 13265), (3115, 12886), (3790, 10591), (5306, 7565), (6230, 6443)]