1620866988

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{647}}^1$

素因数の和:824

約数の個数: 144

約数和(自身を含む): 4547140416

約数和(自身を除く): 2926273428

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 53, 78, 101, 106, 117, 156, 159, 202, 212, 234, 303, 318, 404, 468, 477, 606, 636, 647, 689, 909, 954, 1212, 1294, 1313, 1378, 1818, 1908, 1941, 2067, 2588, 2626, 2756, 3636, 3882, 3939, 4134, 5252, 5353, 5823, 6201, 7764, 7878, 8268, 8411, 10706, 11646, 11817, 12402, 15756, 16059, 16822, 21412, 23292, 23634, 24804, 25233, 32118, 33644, 34291, 47268, 48177, 50466, 64236, 65347, 68582, 69589, 75699, 96354, 100932, 102873, 130694, 137164, 139178, 151398, 192708, 196041, 205746, 208767, 261388, 278356, 302796, 308619, 392082, 411492, 417534, 445783, 588123, 617238, 626301, 784164, 835068, 849511, 891566, 1176246, 1234476, 1252602, 1337349, 1699022, 1783132, 2352492, 2505204, 2548533, 2674698, 3398044, 3463391, 4012047, 5097066, 5349396, 6926782, 7645599, 8024094, 10194132, 10390173, 13853564, 15291198, 16048188, 20780346, 30582396, 31170519, 41560692, 45024083, 62341038, 90048166, 124682076, 135072249, 180096332, 270144498, 405216747, 540288996, 810433494, 1620866988]

約数ペア:

[(1, 1620866988), (2, 810433494), (3, 540288996), (4, 405216747), (6, 270144498), (9, 180096332), (12, 135072249), (13, 124682076), (18, 90048166), (26, 62341038), (36, 45024083), (39, 41560692), (52, 31170519), (53, 30582396), (78, 20780346), (101, 16048188), (106, 15291198), (117, 13853564), (156, 10390173), (159, 10194132), (202, 8024094), (212, 7645599), (234, 6926782), (303, 5349396), (318, 5097066), (404, 4012047), (468, 3463391), (477, 3398044), (606, 2674698), (636, 2548533), (647, 2505204), (689, 2352492), (909, 1783132), (954, 1699022), (1212, 1337349), (1294, 1252602), (1313, 1234476), (1378, 1176246), (1818, 891566), (1908, 849511), (1941, 835068), (2067, 784164), (2588, 626301), (2626, 617238), (2756, 588123), (3636, 445783), (3882, 417534), (3939, 411492), (4134, 392082), (5252, 308619), (5353, 302796), (5823, 278356), (6201, 261388), (7764, 208767), (7878, 205746), (8268, 196041), (8411, 192708), (10706, 151398), (11646, 139178), (11817, 137164), (12402, 130694), (15756, 102873), (16059, 100932), (16822, 96354), (21412, 75699), (23292, 69589), (23634, 68582), (24804, 65347), (25233, 64236), (32118, 50466), (33644, 48177), (34291, 47268)]