77785820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{17923}}^1$

素因数の和:17970

約数の個数: 48

約数和(自身を含む): 192718848

約数和(自身を除く): 114933028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 17923, 35846, 71692, 89615, 125461, 179230, 250922, 358460, 501844, 555613, 627305, 1111226, 1254610, 2222452, 2509220, 2778065, 3889291, 5556130, 7778582, 11112260, 15557164, 19446455, 38892910, 77785820]

約数ペア:

[(1, 77785820), (2, 38892910), (4, 19446455), (5, 15557164), (7, 11112260), (10, 7778582), (14, 5556130), (20, 3889291), (28, 2778065), (31, 2509220), (35, 2222452), (62, 1254610), (70, 1111226), (124, 627305), (140, 555613), (155, 501844), (217, 358460), (310, 250922), (434, 179230), (620, 125461), (868, 89615), (1085, 71692), (2170, 35846), (4340, 17923)]