388961790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{7207}}^1$

素因数の和:7481

約数の個数: 64

約数和(自身を含む): 1071166464

約数和(自身を除く): 682204674

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 257, 514, 771, 1285, 1542, 1799, 2570, 3598, 3855, 5397, 7207, 7710, 8995, 10794, 14414, 17990, 21621, 26985, 36035, 43242, 50449, 53970, 72070, 100898, 108105, 151347, 216210, 252245, 302694, 504490, 756735, 1513470, 1852199, 3704398, 5556597, 9260995, 11113194, 12965393, 18521990, 25930786, 27782985, 38896179, 55565970, 64826965, 77792358, 129653930, 194480895, 388961790]

約数ペア:

[(1, 388961790), (2, 194480895), (3, 129653930), (5, 77792358), (6, 64826965), (7, 55565970), (10, 38896179), (14, 27782985), (15, 25930786), (21, 18521990), (30, 12965393), (35, 11113194), (42, 9260995), (70, 5556597), (105, 3704398), (210, 1852199), (257, 1513470), (514, 756735), (771, 504490), (1285, 302694), (1542, 252245), (1799, 216210), (2570, 151347), (3598, 108105), (3855, 100898), (5397, 72070), (7207, 53970), (7710, 50449), (8995, 43242), (10794, 36035), (14414, 26985), (17990, 21621)]