1310346020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{8431}}^1$

素因数の和:8868

約数の個数: 48

約数和(自身を含む): 2903980800

約数和(自身を除く): 1593634780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 409, 818, 1636, 2045, 4090, 7771, 8180, 8431, 15542, 16862, 31084, 33724, 38855, 42155, 77710, 84310, 155420, 160189, 168620, 320378, 640756, 800945, 1601890, 3203780, 3448279, 6896558, 13793116, 17241395, 34482790, 65517301, 68965580, 131034602, 262069204, 327586505, 655173010, 1310346020]

約数ペア:

[(1, 1310346020), (2, 655173010), (4, 327586505), (5, 262069204), (10, 131034602), (19, 68965580), (20, 65517301), (38, 34482790), (76, 17241395), (95, 13793116), (190, 6896558), (380, 3448279), (409, 3203780), (818, 1601890), (1636, 800945), (2045, 640756), (4090, 320378), (7771, 168620), (8180, 160189), (8431, 155420), (15542, 84310), (16862, 77710), (31084, 42155), (33724, 38855)]