20321640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2971}}^1$

素因数の和:3007

約数の個数: 96

約数和(自身を含む): 69544800

約数和(自身を除く): 49223160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 2971, 3420, 5942, 6840, 8913, 11884, 14855, 17826, 23768, 26739, 29710, 35652, 44565, 53478, 56449, 59420, 71304, 89130, 106956, 112898, 118840, 133695, 169347, 178260, 213912, 225796, 267390, 282245, 338694, 356520, 451592, 508041, 534780, 564490, 677388, 846735, 1016082, 1069560, 1128980, 1354776, 1693470, 2032164, 2257960, 2540205, 3386940, 4064328, 5080410, 6773880, 10160820, 20321640]

約数ペア:

[(1, 20321640), (2, 10160820), (3, 6773880), (4, 5080410), (5, 4064328), (6, 3386940), (8, 2540205), (9, 2257960), (10, 2032164), (12, 1693470), (15, 1354776), (18, 1128980), (19, 1069560), (20, 1016082), (24, 846735), (30, 677388), (36, 564490), (38, 534780), (40, 508041), (45, 451592), (57, 356520), (60, 338694), (72, 282245), (76, 267390), (90, 225796), (95, 213912), (114, 178260), (120, 169347), (152, 133695), (171, 118840), (180, 112898), (190, 106956), (228, 89130), (285, 71304), (342, 59420), (360, 56449), (380, 53478), (456, 44565), (570, 35652), (684, 29710), (760, 26739), (855, 23768), (1140, 17826), (1368, 14855), (1710, 11884), (2280, 8913), (2971, 6840), (3420, 5942)]