20216292016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1\times {\mathrm{3331}}^1$

素因数の和:3830

約数の個数: 80

約数和(自身を含む): 42368725728

約数和(自身を除く): 22152433712

約数列:

[1, 2, 4, 8, 16, 17, 34, 53, 68, 106, 136, 212, 272, 421, 424, 842, 848, 901, 1684, 1802, 3331, 3368, 3604, 6662, 6736, 7157, 7208, 13324, 14314, 14416, 22313, 26648, 28628, 44626, 53296, 56627, 57256, 89252, 113254, 114512, 176543, 178504, 226508, 353086, 357008, 379321, 453016, 706172, 758642, 906032, 1402351, 1412344, 1517284, 2804702, 2824688, 3001231, 3034568, 5609404, 6002462, 6069136, 11218808, 12004924, 22437616, 23839967, 24009848, 47679934, 48019696, 74324603, 95359868, 148649206, 190719736, 297298412, 381439472, 594596824, 1189193648, 1263518251, 2527036502, 5054073004, 10108146008, 20216292016]

約数ペア:

[(1, 20216292016), (2, 10108146008), (4, 5054073004), (8, 2527036502), (16, 1263518251), (17, 1189193648), (34, 594596824), (53, 381439472), (68, 297298412), (106, 190719736), (136, 148649206), (212, 95359868), (272, 74324603), (421, 48019696), (424, 47679934), (842, 24009848), (848, 23839967), (901, 22437616), (1684, 12004924), (1802, 11218808), (3331, 6069136), (3368, 6002462), (3604, 5609404), (6662, 3034568), (6736, 3001231), (7157, 2824688), (7208, 2804702), (13324, 1517284), (14314, 1412344), (14416, 1402351), (22313, 906032), (26648, 758642), (28628, 706172), (44626, 453016), (53296, 379321), (56627, 357008), (57256, 353086), (89252, 226508), (113254, 178504), (114512, 176543)]