991904408

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{2339}}^1$

素因数の和:2496

約数の個数: 64

約数和(自身を含む): 2089152000

約数和(自身を除く): 1097247592

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 79, 88, 122, 158, 244, 316, 488, 632, 671, 869, 1342, 1738, 2339, 2684, 3476, 4678, 4819, 5368, 6952, 9356, 9638, 18712, 19276, 25729, 38552, 51458, 53009, 102916, 106018, 142679, 184781, 205832, 212036, 285358, 369562, 424072, 570716, 739124, 1141432, 1478248, 1569469, 2032591, 3138938, 4065182, 6277876, 8130364, 11271641, 12555752, 16260728, 22543282, 45086564, 90173128, 123988051, 247976102, 495952204, 991904408]

約数ペア:

[(1, 991904408), (2, 495952204), (4, 247976102), (8, 123988051), (11, 90173128), (22, 45086564), (44, 22543282), (61, 16260728), (79, 12555752), (88, 11271641), (122, 8130364), (158, 6277876), (244, 4065182), (316, 3138938), (488, 2032591), (632, 1569469), (671, 1478248), (869, 1141432), (1342, 739124), (1738, 570716), (2339, 424072), (2684, 369562), (3476, 285358), (4678, 212036), (4819, 205832), (5368, 184781), (6952, 142679), (9356, 106018), (9638, 102916), (18712, 53009), (19276, 51458), (25729, 38552)]