400842988

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:216

約数の個数: 144

約数和(自身を含む): 944455680

約数和(自身を除く): 543612692

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 29, 46, 52, 58, 91, 92, 116, 127, 161, 169, 182, 203, 254, 299, 322, 338, 364, 377, 406, 508, 598, 644, 667, 676, 754, 812, 889, 1183, 1196, 1334, 1508, 1651, 1778, 2093, 2366, 2639, 2668, 2921, 3302, 3556, 3683, 3887, 4186, 4669, 4732, 4901, 5278, 5842, 6604, 7366, 7774, 8372, 8671, 9338, 9802, 10556, 11557, 11684, 14732, 15548, 17342, 18676, 19604, 20447, 21463, 23114, 25781, 27209, 34307, 34684, 37973, 40894, 42926, 46228, 47879, 51562, 54418, 60697, 68614, 75946, 81788, 84709, 85852, 95758, 103124, 108836, 112723, 121394, 137228, 150241, 151892, 169418, 191516, 225446, 242788, 265811, 300482, 335153, 338836, 450892, 493649, 531622, 592963, 600964, 622427, 670306, 789061, 987298, 1063244, 1101217, 1185926, 1244854, 1340612, 1578122, 1974596, 2202434, 2371852, 2489708, 3156244, 3455543, 4356989, 4404868, 6911086, 7708519, 8713978, 13822172, 14315821, 15417038, 17427956, 28631642, 30834076, 57263284, 100210747, 200421494, 400842988]

約数ペア:

[(1, 400842988), (2, 200421494), (4, 100210747), (7, 57263284), (13, 30834076), (14, 28631642), (23, 17427956), (26, 15417038), (28, 14315821), (29, 13822172), (46, 8713978), (52, 7708519), (58, 6911086), (91, 4404868), (92, 4356989), (116, 3455543), (127, 3156244), (161, 2489708), (169, 2371852), (182, 2202434), (203, 1974596), (254, 1578122), (299, 1340612), (322, 1244854), (338, 1185926), (364, 1101217), (377, 1063244), (406, 987298), (508, 789061), (598, 670306), (644, 622427), (667, 600964), (676, 592963), (754, 531622), (812, 493649), (889, 450892), (1183, 338836), (1196, 335153), (1334, 300482), (1508, 265811), (1651, 242788), (1778, 225446), (2093, 191516), (2366, 169418), (2639, 151892), (2668, 150241), (2921, 137228), (3302, 121394), (3556, 112723), (3683, 108836), (3887, 103124), (4186, 95758), (4669, 85852), (4732, 84709), (4901, 81788), (5278, 75946), (5842, 68614), (6604, 60697), (7366, 54418), (7774, 51562), (8372, 47879), (8671, 46228), (9338, 42926), (9802, 40894), (10556, 37973), (11557, 34684), (11684, 34307), (14732, 27209), (15548, 25781), (17342, 23114), (18676, 21463), (19604, 20447)]