20315880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1447}}^1$

素因数の和:1480

約数の個数: 128

約数和(自身を含む): 72979200

約数和(自身を除く): 52663320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1447, 1560, 1755, 2340, 2808, 2894, 3510, 4341, 4680, 5788, 7020, 7235, 8682, 11576, 13023, 14040, 14470, 17364, 18811, 21705, 26046, 28940, 34728, 37622, 39069, 43410, 52092, 56433, 57880, 65115, 75244, 78138, 86820, 94055, 104184, 112866, 130230, 150488, 156276, 169299, 173640, 188110, 195345, 225732, 260460, 282165, 312552, 338598, 376220, 390690, 451464, 507897, 520920, 564330, 677196, 752440, 781380, 846495, 1015794, 1128660, 1354392, 1562760, 1692990, 2031588, 2257320, 2539485, 3385980, 4063176, 5078970, 6771960, 10157940, 20315880]

約数ペア:

[(1, 20315880), (2, 10157940), (3, 6771960), (4, 5078970), (5, 4063176), (6, 3385980), (8, 2539485), (9, 2257320), (10, 2031588), (12, 1692990), (13, 1562760), (15, 1354392), (18, 1128660), (20, 1015794), (24, 846495), (26, 781380), (27, 752440), (30, 677196), (36, 564330), (39, 520920), (40, 507897), (45, 451464), (52, 390690), (54, 376220), (60, 338598), (65, 312552), (72, 282165), (78, 260460), (90, 225732), (104, 195345), (108, 188110), (117, 173640), (120, 169299), (130, 156276), (135, 150488), (156, 130230), (180, 112866), (195, 104184), (216, 94055), (234, 86820), (260, 78138), (270, 75244), (312, 65115), (351, 57880), (360, 56433), (390, 52092), (468, 43410), (520, 39069), (540, 37622), (585, 34728), (702, 28940), (780, 26046), (936, 21705), (1080, 18811), (1170, 17364), (1404, 14470), (1447, 14040), (1560, 13023), (1755, 11576), (2340, 8682), (2808, 7235), (2894, 7020), (3510, 5788), (4341, 4680)]