251172972

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{691}}^1$

素因数の和:1163

約数の個数: 72

約数和(自身を含む): 664984320

約数和(自身を除く): 413811348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 439, 691, 828, 878, 1317, 1382, 1756, 2073, 2634, 2764, 3951, 4146, 5268, 6219, 7902, 8292, 10097, 12438, 15804, 15893, 20194, 24876, 30291, 31786, 40388, 47679, 60582, 63572, 90873, 95358, 121164, 143037, 181746, 190716, 286074, 303349, 363492, 572148, 606698, 910047, 1213396, 1820094, 2730141, 3640188, 5460282, 6977027, 10920564, 13954054, 20931081, 27908108, 41862162, 62793243, 83724324, 125586486, 251172972]

約数ペア:

[(1, 251172972), (2, 125586486), (3, 83724324), (4, 62793243), (6, 41862162), (9, 27908108), (12, 20931081), (18, 13954054), (23, 10920564), (36, 6977027), (46, 5460282), (69, 3640188), (92, 2730141), (138, 1820094), (207, 1213396), (276, 910047), (414, 606698), (439, 572148), (691, 363492), (828, 303349), (878, 286074), (1317, 190716), (1382, 181746), (1756, 143037), (2073, 121164), (2634, 95358), (2764, 90873), (3951, 63572), (4146, 60582), (5268, 47679), (6219, 40388), (7902, 31786), (8292, 30291), (10097, 24876), (12438, 20194), (15804, 15893)]