256650160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{463}}^1$

素因数の和:543

約数の個数: 120

約数和(自身を含む): 663332544

約数和(自身を除く): 406682384

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 169, 205, 208, 260, 328, 338, 410, 463, 520, 533, 656, 676, 820, 845, 926, 1040, 1066, 1352, 1640, 1690, 1852, 2132, 2315, 2665, 2704, 3280, 3380, 3704, 4264, 4630, 5330, 6019, 6760, 6929, 7408, 8528, 9260, 10660, 12038, 13520, 13858, 18520, 18983, 21320, 24076, 27716, 30095, 34645, 37040, 37966, 42640, 48152, 55432, 60190, 69290, 75932, 78247, 94915, 96304, 110864, 120380, 138580, 151864, 156494, 189830, 240760, 246779, 277160, 303728, 312988, 379660, 391235, 481520, 493558, 554320, 625976, 759320, 782470, 987116, 1233895, 1251952, 1518640, 1564940, 1974232, 2467790, 3129880, 3208127, 3948464, 4935580, 6259760, 6416254, 9871160, 12832508, 16040635, 19742320, 25665016, 32081270, 51330032, 64162540, 128325080, 256650160]

約数ペア:

[(1, 256650160), (2, 128325080), (4, 64162540), (5, 51330032), (8, 32081270), (10, 25665016), (13, 19742320), (16, 16040635), (20, 12832508), (26, 9871160), (40, 6416254), (41, 6259760), (52, 4935580), (65, 3948464), (80, 3208127), (82, 3129880), (104, 2467790), (130, 1974232), (164, 1564940), (169, 1518640), (205, 1251952), (208, 1233895), (260, 987116), (328, 782470), (338, 759320), (410, 625976), (463, 554320), (520, 493558), (533, 481520), (656, 391235), (676, 379660), (820, 312988), (845, 303728), (926, 277160), (1040, 246779), (1066, 240760), (1352, 189830), (1640, 156494), (1690, 151864), (1852, 138580), (2132, 120380), (2315, 110864), (2665, 96304), (2704, 94915), (3280, 78247), (3380, 75932), (3704, 69290), (4264, 60190), (4630, 55432), (5330, 48152), (6019, 42640), (6760, 37966), (6929, 37040), (7408, 34645), (8528, 30095), (9260, 27716), (10660, 24076), (12038, 21320), (13520, 18983), (13858, 18520)]