78902820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23071}}^1$

素因数の和:23105

約数の個数: 72

約数和(自身を含む): 251946240

約数和(自身を除く): 173043420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 23071, 46142, 69213, 92284, 115355, 138426, 207639, 230710, 276852, 346065, 415278, 438349, 461420, 692130, 830556, 876698, 1038195, 1315047, 1384260, 1753396, 2076390, 2191745, 2630094, 3945141, 4152780, 4383490, 5260188, 6575235, 7890282, 8766980, 13150470, 15780564, 19725705, 26300940, 39451410, 78902820]

約数ペア:

[(1, 78902820), (2, 39451410), (3, 26300940), (4, 19725705), (5, 15780564), (6, 13150470), (9, 8766980), (10, 7890282), (12, 6575235), (15, 5260188), (18, 4383490), (19, 4152780), (20, 3945141), (30, 2630094), (36, 2191745), (38, 2076390), (45, 1753396), (57, 1384260), (60, 1315047), (76, 1038195), (90, 876698), (95, 830556), (114, 692130), (171, 461420), (180, 438349), (190, 415278), (228, 346065), (285, 276852), (342, 230710), (380, 207639), (570, 138426), (684, 115355), (855, 92284), (1140, 69213), (1710, 46142), (3420, 23071)]