20885133032

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{421}}^1\times {\mathrm{839}}^1$

素因数の和:1674

約数の個数: 64

約数和(自身を含む): 41474160000

約数和(自身を除く): 20589026968

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 389, 421, 778, 839, 842, 1556, 1678, 1684, 3112, 3356, 3368, 6712, 7391, 7999, 14782, 15941, 15998, 29564, 31882, 31996, 59128, 63764, 63992, 127528, 163769, 326371, 327538, 353219, 652742, 655076, 706438, 1305484, 1310152, 1412876, 2610968, 2825752, 3111611, 6201049, 6223222, 6711161, 12402098, 12446444, 13422322, 24804196, 24892888, 26844644, 49608392, 53689288, 137402191, 274804382, 549608764, 1099217528, 2610641629, 5221283258, 10442566516, 20885133032]

約数ペア:

[(1, 20885133032), (2, 10442566516), (4, 5221283258), (8, 2610641629), (19, 1099217528), (38, 549608764), (76, 274804382), (152, 137402191), (389, 53689288), (421, 49608392), (778, 26844644), (839, 24892888), (842, 24804196), (1556, 13422322), (1678, 12446444), (1684, 12402098), (3112, 6711161), (3356, 6223222), (3368, 6201049), (6712, 3111611), (7391, 2825752), (7999, 2610968), (14782, 1412876), (15941, 1310152), (15998, 1305484), (29564, 706438), (31882, 655076), (31996, 652742), (59128, 353219), (63764, 327538), (63992, 326371), (127528, 163769)]