638740404

素因数分解:

$2^2\times 3^4\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:224

約数の個数: 180

約数和(自身を含む): 1817485824

約数和(自身を除く): 1178745420

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 43, 54, 57, 76, 81, 86, 108, 114, 127, 129, 162, 171, 172, 228, 254, 258, 324, 342, 361, 381, 387, 508, 513, 516, 684, 722, 762, 774, 817, 1026, 1083, 1143, 1161, 1444, 1524, 1539, 1548, 1634, 2052, 2166, 2286, 2322, 2413, 2451, 3078, 3249, 3268, 3429, 3483, 4332, 4572, 4644, 4826, 4902, 5461, 6156, 6498, 6858, 6966, 7239, 7353, 9652, 9747, 9804, 10287, 10922, 12996, 13716, 13932, 14478, 14706, 15523, 16383, 19494, 20574, 21717, 21844, 22059, 28956, 29241, 29412, 31046, 32766, 38988, 41148, 43434, 44118, 45847, 46569, 49149, 58482, 62092, 65151, 65532, 66177, 86868, 88236, 91694, 93138, 98298, 103759, 116964, 130302, 132354, 137541, 139707, 147447, 183388, 186276, 195453, 196596, 207518, 260604, 264708, 275082, 279414, 294894, 311277, 390906, 412623, 415036, 419121, 442341, 550164, 558828, 589788, 622554, 781812, 825246, 838242, 884682, 933831, 1237869, 1245108, 1257363, 1650492, 1676484, 1769364, 1867662, 1971421, 2475738, 2514726, 2801493, 3713607, 3735324, 3942842, 4951476, 5029452, 5602986, 5914263, 7427214, 7885684, 8404479, 11205972, 11828526, 14854428, 16808958, 17742789, 23657052, 33617916, 35485578, 53228367, 70971156, 106456734, 159685101, 212913468, 319370202, 638740404]

約数ペア:

[(1, 638740404), (2, 319370202), (3, 212913468), (4, 159685101), (6, 106456734), (9, 70971156), (12, 53228367), (18, 35485578), (19, 33617916), (27, 23657052), (36, 17742789), (38, 16808958), (43, 14854428), (54, 11828526), (57, 11205972), (76, 8404479), (81, 7885684), (86, 7427214), (108, 5914263), (114, 5602986), (127, 5029452), (129, 4951476), (162, 3942842), (171, 3735324), (172, 3713607), (228, 2801493), (254, 2514726), (258, 2475738), (324, 1971421), (342, 1867662), (361, 1769364), (381, 1676484), (387, 1650492), (508, 1257363), (513, 1245108), (516, 1237869), (684, 933831), (722, 884682), (762, 838242), (774, 825246), (817, 781812), (1026, 622554), (1083, 589788), (1143, 558828), (1161, 550164), (1444, 442341), (1524, 419121), (1539, 415036), (1548, 412623), (1634, 390906), (2052, 311277), (2166, 294894), (2286, 279414), (2322, 275082), (2413, 264708), (2451, 260604), (3078, 207518), (3249, 196596), (3268, 195453), (3429, 186276), (3483, 183388), (4332, 147447), (4572, 139707), (4644, 137541), (4826, 132354), (4902, 130302), (5461, 116964), (6156, 103759), (6498, 98298), (6858, 93138), (6966, 91694), (7239, 88236), (7353, 86868), (9652, 66177), (9747, 65532), (9804, 65151), (10287, 62092), (10922, 58482), (12996, 49149), (13716, 46569), (13932, 45847), (14478, 44118), (14706, 43434), (15523, 41148), (16383, 38988), (19494, 32766), (20574, 31046), (21717, 29412), (21844, 29241), (22059, 28956)]