21416996840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{2699}}^1$

素因数の和:2979

約数の個数: 128

約数和(自身を含む): 51963120000

約数和(自身を除く): 30546123160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 197, 212, 265, 380, 394, 424, 530, 760, 788, 985, 1007, 1060, 1576, 1970, 2014, 2120, 2699, 3743, 3940, 4028, 5035, 5398, 7486, 7880, 8056, 10070, 10441, 10796, 13495, 14972, 18715, 20140, 20882, 21592, 26990, 29944, 37430, 40280, 41764, 51281, 52205, 53980, 74860, 83528, 102562, 104410, 107960, 143047, 149720, 198379, 205124, 208820, 256405, 286094, 396758, 410248, 417640, 512810, 531703, 572188, 715235, 793516, 991895, 1025620, 1063406, 1144376, 1430470, 1587032, 1983790, 2051240, 2126812, 2658515, 2717893, 2860940, 3967580, 4253624, 5317030, 5435786, 5721880, 7935160, 10102357, 10634060, 10871572, 13589465, 20204714, 21268120, 21743144, 27178930, 28180259, 40409428, 50511785, 54357860, 56360518, 80818856, 101023570, 108715720, 112721036, 140901295, 202047140, 225442072, 281802590, 404094280, 535424921, 563605180, 1070849842, 1127210360, 2141699684, 2677124605, 4283399368, 5354249210, 10708498420, 21416996840]

約数ペア:

[(1, 21416996840), (2, 10708498420), (4, 5354249210), (5, 4283399368), (8, 2677124605), (10, 2141699684), (19, 1127210360), (20, 1070849842), (38, 563605180), (40, 535424921), (53, 404094280), (76, 281802590), (95, 225442072), (106, 202047140), (152, 140901295), (190, 112721036), (197, 108715720), (212, 101023570), (265, 80818856), (380, 56360518), (394, 54357860), (424, 50511785), (530, 40409428), (760, 28180259), (788, 27178930), (985, 21743144), (1007, 21268120), (1060, 20204714), (1576, 13589465), (1970, 10871572), (2014, 10634060), (2120, 10102357), (2699, 7935160), (3743, 5721880), (3940, 5435786), (4028, 5317030), (5035, 4253624), (5398, 3967580), (7486, 2860940), (7880, 2717893), (8056, 2658515), (10070, 2126812), (10441, 2051240), (10796, 1983790), (13495, 1587032), (14972, 1430470), (18715, 1144376), (20140, 1063406), (20882, 1025620), (21592, 991895), (26990, 793516), (29944, 715235), (37430, 572188), (40280, 531703), (41764, 512810), (51281, 417640), (52205, 410248), (53980, 396758), (74860, 286094), (83528, 256405), (102562, 208820), (104410, 205124), (107960, 198379), (143047, 149720)]