389278780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{5189}}^1$

素因数の和:5251

約数の個数: 72

約数和(自身を含む): 927722880

約数和(自身を除く): 538444100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 484, 605, 620, 682, 1210, 1364, 1705, 2420, 3410, 3751, 5189, 6820, 7502, 10378, 15004, 18755, 20756, 25945, 37510, 51890, 57079, 75020, 103780, 114158, 160859, 228316, 285395, 321718, 570790, 627869, 643436, 804295, 1141580, 1255738, 1608590, 1769449, 2511476, 3139345, 3217180, 3538898, 6278690, 7077796, 8847245, 12557380, 17694490, 19463939, 35388980, 38927878, 77855756, 97319695, 194639390, 389278780]

約数ペア:

[(1, 389278780), (2, 194639390), (4, 97319695), (5, 77855756), (10, 38927878), (11, 35388980), (20, 19463939), (22, 17694490), (31, 12557380), (44, 8847245), (55, 7077796), (62, 6278690), (110, 3538898), (121, 3217180), (124, 3139345), (155, 2511476), (220, 1769449), (242, 1608590), (310, 1255738), (341, 1141580), (484, 804295), (605, 643436), (620, 627869), (682, 570790), (1210, 321718), (1364, 285395), (1705, 228316), (2420, 160859), (3410, 114158), (3751, 103780), (5189, 75020), (6820, 57079), (7502, 51890), (10378, 37510), (15004, 25945), (18755, 20756)]