19910500792

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{152791}}^1$

素因数の和:152996

約数の個数: 64

約数和(自身を含む): 46204300800

約数和(自身を除く): 26293800008

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 179, 182, 358, 364, 716, 728, 1253, 1432, 2327, 2506, 4654, 5012, 9308, 10024, 16289, 18616, 32578, 65156, 130312, 152791, 305582, 611164, 1069537, 1222328, 1986283, 2139074, 3972566, 4278148, 7945132, 8556296, 13903981, 15890264, 27349589, 27807962, 54699178, 55615924, 109398356, 111231848, 191447123, 218796712, 355544657, 382894246, 711089314, 765788492, 1422178628, 1531576984, 2488812599, 2844357256, 4977625198, 9955250396, 19910500792]

約数ペア:

[(1, 19910500792), (2, 9955250396), (4, 4977625198), (7, 2844357256), (8, 2488812599), (13, 1531576984), (14, 1422178628), (26, 765788492), (28, 711089314), (52, 382894246), (56, 355544657), (91, 218796712), (104, 191447123), (179, 111231848), (182, 109398356), (358, 55615924), (364, 54699178), (716, 27807962), (728, 27349589), (1253, 15890264), (1432, 13903981), (2327, 8556296), (2506, 7945132), (4654, 4278148), (5012, 3972566), (9308, 2139074), (10024, 1986283), (16289, 1222328), (18616, 1069537), (32578, 611164), (65156, 305582), (130312, 152791)]