18865360

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7607}}^1$

素因数の和:7651

約数の個数: 40

約数和(自身を含む): 45282816

約数和(自身を除く): 26417456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7607, 15214, 30428, 38035, 60856, 76070, 121712, 152140, 235817, 304280, 471634, 608560, 943268, 1179085, 1886536, 2358170, 3773072, 4716340, 9432680, 18865360]

約数ペア:

[(1, 18865360), (2, 9432680), (4, 4716340), (5, 3773072), (8, 2358170), (10, 1886536), (16, 1179085), (20, 943268), (31, 608560), (40, 471634), (62, 304280), (80, 235817), (124, 152140), (155, 121712), (248, 76070), (310, 60856), (496, 38035), (620, 30428), (1240, 15214), (2480, 7607)]