20941667584

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{31793}}^1$

素因数の和:31923

約数の個数: 72

約数和(自身を含む): 43671220992

約数和(自身を除く): 22729553408

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 83, 124, 128, 166, 248, 256, 332, 496, 664, 992, 1328, 1984, 2573, 2656, 3968, 5146, 5312, 7936, 10292, 10624, 20584, 21248, 31793, 41168, 63586, 82336, 127172, 164672, 254344, 329344, 508688, 658688, 985583, 1017376, 1971166, 2034752, 2638819, 3942332, 4069504, 5277638, 7884664, 8139008, 10555276, 15769328, 21110552, 31538656, 42221104, 63077312, 81803389, 84442208, 126154624, 163606778, 168884416, 252309248, 327213556, 337768832, 654427112, 675537664, 1308854224, 2617708448, 5235416896, 10470833792, 20941667584]

約数ペア:

[(1, 20941667584), (2, 10470833792), (4, 5235416896), (8, 2617708448), (16, 1308854224), (31, 675537664), (32, 654427112), (62, 337768832), (64, 327213556), (83, 252309248), (124, 168884416), (128, 163606778), (166, 126154624), (248, 84442208), (256, 81803389), (332, 63077312), (496, 42221104), (664, 31538656), (992, 21110552), (1328, 15769328), (1984, 10555276), (2573, 8139008), (2656, 7884664), (3968, 5277638), (5146, 4069504), (5312, 3942332), (7936, 2638819), (10292, 2034752), (10624, 1971166), (20584, 1017376), (21248, 985583), (31793, 658688), (41168, 508688), (63586, 329344), (82336, 254344), (127172, 164672)]