16270020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:454

約数の個数: 144

約数和(自身を含む): 56412720

約数和(自身を除く): 40142700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 409, 442, 468, 510, 585, 612, 663, 765, 780, 818, 884, 1020, 1105, 1170, 1227, 1326, 1530, 1636, 1989, 2045, 2210, 2340, 2454, 2652, 3060, 3315, 3681, 3978, 4090, 4420, 4908, 5317, 6135, 6630, 6953, 7362, 7956, 8180, 9945, 10634, 12270, 13260, 13906, 14724, 15951, 18405, 19890, 20859, 21268, 24540, 26585, 27812, 31902, 34765, 36810, 39780, 41718, 47853, 53170, 62577, 63804, 69530, 73620, 79755, 83436, 90389, 95706, 104295, 106340, 125154, 139060, 159510, 180778, 191412, 208590, 239265, 250308, 271167, 312885, 319020, 361556, 417180, 451945, 478530, 542334, 625770, 813501, 903890, 957060, 1084668, 1251540, 1355835, 1627002, 1807780, 2711670, 3254004, 4067505, 5423340, 8135010, 16270020]

約数ペア:

[(1, 16270020), (2, 8135010), (3, 5423340), (4, 4067505), (5, 3254004), (6, 2711670), (9, 1807780), (10, 1627002), (12, 1355835), (13, 1251540), (15, 1084668), (17, 957060), (18, 903890), (20, 813501), (26, 625770), (30, 542334), (34, 478530), (36, 451945), (39, 417180), (45, 361556), (51, 319020), (52, 312885), (60, 271167), (65, 250308), (68, 239265), (78, 208590), (85, 191412), (90, 180778), (102, 159510), (117, 139060), (130, 125154), (153, 106340), (156, 104295), (170, 95706), (180, 90389), (195, 83436), (204, 79755), (221, 73620), (234, 69530), (255, 63804), (260, 62577), (306, 53170), (340, 47853), (390, 41718), (409, 39780), (442, 36810), (468, 34765), (510, 31902), (585, 27812), (612, 26585), (663, 24540), (765, 21268), (780, 20859), (818, 19890), (884, 18405), (1020, 15951), (1105, 14724), (1170, 13906), (1227, 13260), (1326, 12270), (1530, 10634), (1636, 9945), (1989, 8180), (2045, 7956), (2210, 7362), (2340, 6953), (2454, 6630), (2652, 6135), (3060, 5317), (3315, 4908), (3681, 4420), (3978, 4090)]