15980640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:241

約数の個数: 144

約数和(自身を含む): 54785808

約数和(自身を除く): 38805168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 195, 197, 208, 240, 260, 312, 338, 390, 394, 416, 480, 507, 520, 591, 624, 676, 780, 788, 845, 985, 1014, 1040, 1182, 1248, 1352, 1560, 1576, 1690, 1970, 2028, 2080, 2364, 2535, 2561, 2704, 2955, 3120, 3152, 3380, 3940, 4056, 4728, 5070, 5122, 5408, 5910, 6240, 6304, 6760, 7683, 7880, 8112, 9456, 10140, 10244, 11820, 12805, 13520, 15366, 15760, 16224, 18912, 20280, 20488, 23640, 25610, 27040, 30732, 31520, 33293, 38415, 40560, 40976, 47280, 51220, 61464, 66586, 76830, 81120, 81952, 94560, 99879, 102440, 122928, 133172, 153660, 166465, 199758, 204880, 245856, 266344, 307320, 332930, 399516, 409760, 499395, 532688, 614640, 665860, 799032, 998790, 1065376, 1229280, 1331720, 1598064, 1997580, 2663440, 3196128, 3995160, 5326880, 7990320, 15980640]

約数ペア:

[(1, 15980640), (2, 7990320), (3, 5326880), (4, 3995160), (5, 3196128), (6, 2663440), (8, 1997580), (10, 1598064), (12, 1331720), (13, 1229280), (15, 1065376), (16, 998790), (20, 799032), (24, 665860), (26, 614640), (30, 532688), (32, 499395), (39, 409760), (40, 399516), (48, 332930), (52, 307320), (60, 266344), (65, 245856), (78, 204880), (80, 199758), (96, 166465), (104, 153660), (120, 133172), (130, 122928), (156, 102440), (160, 99879), (169, 94560), (195, 81952), (197, 81120), (208, 76830), (240, 66586), (260, 61464), (312, 51220), (338, 47280), (390, 40976), (394, 40560), (416, 38415), (480, 33293), (507, 31520), (520, 30732), (591, 27040), (624, 25610), (676, 23640), (780, 20488), (788, 20280), (845, 18912), (985, 16224), (1014, 15760), (1040, 15366), (1182, 13520), (1248, 12805), (1352, 11820), (1560, 10244), (1576, 10140), (1690, 9456), (1970, 8112), (2028, 7880), (2080, 7683), (2364, 6760), (2535, 6304), (2561, 6240), (2704, 5910), (2955, 5408), (3120, 5122), (3152, 5070), (3380, 4728), (3940, 4056)]