20852912984

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{383}}^1\times {\mathrm{1979}}^1$

素因数の和:2568

約数の個数: 64

約数和(自身を含む): 41513472000

約数和(自身を除く): 20660559016

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 181, 362, 383, 724, 766, 1448, 1532, 1979, 3064, 3439, 3958, 6878, 7277, 7916, 13756, 14554, 15832, 27512, 29108, 37601, 58216, 69323, 75202, 138646, 150404, 277292, 300808, 358199, 554584, 716398, 757957, 1317137, 1432796, 1515914, 2634274, 2865592, 3031828, 5268548, 6063656, 6805781, 10537096, 13611562, 14401183, 27223124, 28802366, 54446248, 57604732, 115209464, 137190217, 274380434, 548760868, 1097521736, 2606614123, 5213228246, 10426456492, 20852912984]

約数ペア:

[(1, 20852912984), (2, 10426456492), (4, 5213228246), (8, 2606614123), (19, 1097521736), (38, 548760868), (76, 274380434), (152, 137190217), (181, 115209464), (362, 57604732), (383, 54446248), (724, 28802366), (766, 27223124), (1448, 14401183), (1532, 13611562), (1979, 10537096), (3064, 6805781), (3439, 6063656), (3958, 5268548), (6878, 3031828), (7277, 2865592), (7916, 2634274), (13756, 1515914), (14554, 1432796), (15832, 1317137), (27512, 757957), (29108, 716398), (37601, 554584), (58216, 358199), (69323, 300808), (75202, 277292), (138646, 150404)]