400840628

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 734469120

約数和(自身を除く): 333628492

約数列:

[1, 2, 4, 47, 79, 94, 137, 158, 188, 197, 274, 316, 394, 548, 788, 3713, 6439, 7426, 9259, 10823, 12878, 14852, 15563, 18518, 21646, 25756, 26989, 31126, 37036, 43292, 53978, 62252, 107956, 508681, 731461, 1017362, 1268483, 1462922, 2034724, 2132131, 2536966, 2925844, 4264262, 5073932, 8528524, 100210157, 200420314, 400840628]

約数ペア:

[(1, 400840628), (2, 200420314), (4, 100210157), (47, 8528524), (79, 5073932), (94, 4264262), (137, 2925844), (158, 2536966), (188, 2132131), (197, 2034724), (274, 1462922), (316, 1268483), (394, 1017362), (548, 731461), (788, 508681), (3713, 107956), (6439, 62252), (7426, 53978), (9259, 43292), (10823, 37036), (12878, 31126), (14852, 26989), (15563, 25756), (18518, 21646)]