306914980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{42509}}^1$

素因数の和:42556

約数の個数: 36

約数和(自身を含む): 680245020

約数和(自身を除く): 373330040

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 42509, 85018, 170036, 212545, 425090, 807671, 850180, 1615342, 3230684, 4038355, 8076710, 15345749, 16153420, 30691498, 61382996, 76728745, 153457490, 306914980]

約数ペア:

[(1, 306914980), (2, 153457490), (4, 76728745), (5, 61382996), (10, 30691498), (19, 16153420), (20, 15345749), (38, 8076710), (76, 4038355), (95, 3230684), (190, 1615342), (361, 850180), (380, 807671), (722, 425090), (1444, 212545), (1805, 170036), (3610, 85018), (7220, 42509)]