641510528

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 128

約数和(自身を含む): 1420492800

約数和(自身を除く): 778982272

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 67, 76, 124, 127, 128, 134, 152, 248, 254, 268, 304, 496, 508, 536, 589, 608, 992, 1016, 1072, 1178, 1216, 1273, 1984, 2032, 2077, 2144, 2356, 2413, 2432, 2546, 3937, 3968, 4064, 4154, 4288, 4712, 4826, 5092, 7874, 8128, 8308, 8509, 8576, 9424, 9652, 10184, 15748, 16256, 16616, 17018, 18848, 19304, 20368, 31496, 33232, 34036, 37696, 38608, 39463, 40736, 62992, 66464, 68072, 74803, 75392, 77216, 78926, 81472, 125984, 132928, 136144, 149606, 154432, 157852, 161671, 162944, 251968, 263779, 265856, 272288, 299212, 308864, 315704, 323342, 503936, 527558, 544576, 598424, 631408, 646684, 1055116, 1089152, 1196848, 1262816, 1293368, 2110232, 2393696, 2525632, 2586736, 4220464, 4787392, 5011801, 5051264, 5173472, 8440928, 9574784, 10023602, 10346944, 16881856, 20047204, 20693888, 33763712, 40094408, 80188816, 160377632, 320755264, 641510528]

約数ペア:

[(1, 641510528), (2, 320755264), (4, 160377632), (8, 80188816), (16, 40094408), (19, 33763712), (31, 20693888), (32, 20047204), (38, 16881856), (62, 10346944), (64, 10023602), (67, 9574784), (76, 8440928), (124, 5173472), (127, 5051264), (128, 5011801), (134, 4787392), (152, 4220464), (248, 2586736), (254, 2525632), (268, 2393696), (304, 2110232), (496, 1293368), (508, 1262816), (536, 1196848), (589, 1089152), (608, 1055116), (992, 646684), (1016, 631408), (1072, 598424), (1178, 544576), (1216, 527558), (1273, 503936), (1984, 323342), (2032, 315704), (2077, 308864), (2144, 299212), (2356, 272288), (2413, 265856), (2432, 263779), (2546, 251968), (3937, 162944), (3968, 161671), (4064, 157852), (4154, 154432), (4288, 149606), (4712, 136144), (4826, 132928), (5092, 125984), (7874, 81472), (8128, 78926), (8308, 77216), (8509, 75392), (8576, 74803), (9424, 68072), (9652, 66464), (10184, 62992), (15748, 40736), (16256, 39463), (16616, 38608), (17018, 37696), (18848, 34036), (19304, 33232), (20368, 31496)]