40078740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51383}}^1$

素因数の和:51408

約数の個数: 48

約数和(自身を含む): 120855168

約数和(自身を除く): 80776428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 51383, 102766, 154149, 205532, 256915, 308298, 513830, 616596, 667979, 770745, 1027660, 1335958, 1541490, 2003937, 2671916, 3082980, 3339895, 4007874, 6679790, 8015748, 10019685, 13359580, 20039370, 40078740]

約数ペア:

[(1, 40078740), (2, 20039370), (3, 13359580), (4, 10019685), (5, 8015748), (6, 6679790), (10, 4007874), (12, 3339895), (13, 3082980), (15, 2671916), (20, 2003937), (26, 1541490), (30, 1335958), (39, 1027660), (52, 770745), (60, 667979), (65, 616596), (78, 513830), (130, 308298), (156, 256915), (195, 205532), (260, 154149), (390, 102766), (780, 51383)]